/* ==========================================================================
   INTEC SOLUTIONS — Dark industrial theme
   ========================================================================== */

:root{
  --bg: #0a0d12;
  --bg-alt: #0d1119;
  --bg-raised: #11161f;
  --card-bg: #12171f;
  --card-border: rgba(125, 211, 252, 0.16);
  --card-border-hover: rgba(125, 211, 252, 0.45);
  --line: rgba(255,255,255,0.08);
  --text: #edf2f7;
  --text-muted: #93a1b0;
  --text-dim: #5f6c7a;
  --accent: #5fd0ff;
  --accent-2: #1b3a8f;
  --accent-soft: rgba(95, 208, 255, 0.12);
  --radius: 10px;
  --maxw: 1180px;
  --font-head: 'Chakra Petch', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;
}

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

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1,h2,h3,h4{
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.6em 0;
  letter-spacing: 0.3px;
}

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

.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow{
  display:inline-block;
  font-family: var(--font-head);
  font-size: 0.78rem;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

/* ---------------------------------- Buttons ---------------------------------- */

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family: var(--font-head);
  font-size: 0.82rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 13px 26px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
}

.btn-primary{
  background: linear-gradient(135deg, #1b3a8f, #5fd0ff);
  color: #04101f;
  font-weight: 700;
  box-shadow: 0 0 0 rgba(95,208,255,0);
}
.btn-primary:hover{
  box-shadow: 0 6px 24px rgba(95,208,255,0.35);
  transform: translateY(-1px);
}

.btn-ghost{
  background: transparent;
  border-color: rgba(255,255,255,0.18);
  color: var(--text);
}
.btn-ghost:hover{
  border-color: var(--accent);
  color: var(--accent);
}

.btn-row{
  display:flex;
  gap:16px;
  flex-wrap: wrap;
}

/* ---------------------------------- Header ---------------------------------- */

header.site-header{
  position: sticky;
  top:0;
  z-index: 100;
  background: rgba(9,12,17,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-head);
  font-weight:700;
  font-size: 1.25rem;
  letter-spacing: 1px;
}

nav.main-nav{
  display:flex;
  gap:32px;
}

nav.main-nav a{
  font-family: var(--font-head);
  font-size: 0.82rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

nav.main-nav a:hover,
nav.main-nav a.active{
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding: 6px;
}
.nav-toggle span{
  width: 24px;
  height: 2px;
  background: var(--text);
  display:block;
}

/* ---------------------------------- Hero ---------------------------------- */

.hero{
  position: relative;
  overflow: hidden;
  padding: 110px 0 90px;
  background:
    radial-gradient(ellipse 900px 500px at 15% 0%, rgba(27,58,143,0.35), transparent 60%),
    linear-gradient(180deg, #0b0f16 0%, #0a0d12 70%);
  border-bottom: 1px solid var(--line);
}

.hero-grid-lines{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(95,208,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(95,208,255,0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 800px 500px at 20% 10%, black, transparent 75%);
  pointer-events:none;
}

.hero-glow{
  position:absolute;
  right: -180px;
  top: -120px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(95,208,255,0.18), transparent 65%);
  pointer-events:none;
}

.hero-content{
  position:relative;
  max-width: 720px;
}

.hero h1{
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  color:#fff;
  text-transform: uppercase;
}

.hero .lead{
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.hero-small{
  padding: 64px 0 56px;
}
.hero-small h1{
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

/* Abstract industrial illustration (SVG) used in hero */
.hero-art{
  position:absolute;
  right: 0;
  top:0;
  bottom:0;
  width: 46%;
  opacity: 0.9;
  pointer-events:none;
  display:flex;
  align-items:center;
  justify-content:center;
}
@media (max-width: 900px){
  .hero-art{ display:none; }
}

/* ---------------------------------- Sections ---------------------------------- */

section{
  padding: 84px 0;
}

.section-alt{
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head{
  text-align:center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-head h2{
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  color: #fff;
  text-transform: uppercase;
}

/* ---------------------------------- Cards ---------------------------------- */

.grid{
  display:grid;
  gap: 26px;
}
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }

@media (max-width: 860px){
  .grid-3, .grid-2{ grid-template-columns: 1fr; }
}

.card{
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: border-color .25s ease, transform .25s ease;
}
.card:hover{
  border-color: var(--card-border-hover);
  transform: translateY(-3px);
}

.card-media{
  height: 170px;
  border-radius: 8px;
  margin-bottom: 20px;
  overflow:hidden;
  background: linear-gradient(135deg, #0e1420, #182335);
  display:flex;
  align-items:center;
  justify-content:center;
}
.card-media svg{ width: 56%; height: 56%; }

.card h3{
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 10px;
}

.card .tag{
  display:inline-block;
  font-family: var(--font-head);
  font-size: 0.68rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 3px 9px;
  margin-bottom: 14px;
}

.card .read-more{
  display:inline-block;
  margin-top: 8px;
  font-family: var(--font-head);
  font-size: 0.78rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid transparent;
}
.card .read-more:hover{ border-color: var(--accent); }

.icon-circle{
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom: 18px;
}
.icon-circle svg{ width: 26px; height: 26px; }

/* Feature row (Por qué Intec) */
.features-row{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 8px;
}
@media (max-width: 760px){
  .features-row{ grid-template-columns: 1fr; }
}
.feature{
  display:flex;
  align-items:center;
  gap:14px;
  padding: 18px 20px;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.feature svg{ width:28px; height:28px; flex-shrink:0; color: var(--accent); }
.feature strong{ display:block; color:#fff; font-size:0.95rem; }

/* ---------------------------------- Portfolio filters ---------------------------------- */

.filters{
  display:flex;
  gap: 22px;
  flex-wrap: wrap;
  justify-content:center;
  margin-bottom: 40px;
  font-family: var(--font-head);
  font-size: 0.82rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.filters button{
  background:none;
  border:none;
  color: var(--text-muted);
  cursor:pointer;
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
}
.filters button:hover{ color: var(--accent); }
.filters button.active{
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------------------------------- CTA banner ---------------------------------- */

.cta-banner{
  background: var(--bg-raised);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 40px 0;
  text-align:center;
}
.cta-banner p{
  color: #fff;
  font-family: var(--font-head);
  font-size: 1.05rem;
  margin-bottom: 22px;
}
.cta-banner .btn-row{ justify-content:center; }

/* ---------------------------------- Contact ---------------------------------- */

.contact-layout{
  display:grid;
  grid-template-columns: 0.9fr 1.3fr;
  gap: 40px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 44px;
}
@media (max-width: 860px){
  .contact-layout{ grid-template-columns: 1fr; padding: 28px; }
}

.contact-info h2{
  font-size: 1.5rem;
  color:#fff;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.contact-item{
  display:flex;
  gap: 14px;
  margin-bottom: 26px;
}
.contact-item .icon-circle{ margin-bottom:0; flex-shrink:0; }
.contact-item strong{ display:block; color:#fff; margin-bottom:4px; font-size:0.95rem; }
.contact-item span, .contact-item p{ color: var(--text-muted); margin:0; font-size:0.92rem; }

.form-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 560px){
  .form-grid{ grid-template-columns: 1fr; }
}
.form-grid .full{ grid-column: 1 / -1; }

label{
  display:block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-family: var(--font-head);
  letter-spacing: 0.5px;
}

input, select, textarea{
  width:100%;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 6px;
  padding: 11px 13px;
  font-family: var(--font-body);
  font-size: 0.94rem;
}
input:focus, select:focus, textarea:focus{
  outline:none;
  border-color: var(--accent);
}
textarea{ resize: vertical; min-height: 110px; }

.form-note{
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 14px;
}

/* ---------------------------------- Footer ---------------------------------- */

footer.site-footer{
  padding: 34px 0;
  text-align:center;
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
}
footer.site-footer .company{
  font-family: var(--font-head);
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 4px;
}
footer.site-footer .contact-line{
  color: var(--text-dim);
  font-size: 0.85rem;
}
footer.site-footer .foot-links{
  margin-top: 14px;
  display:flex;
  gap:20px;
  justify-content:center;
  font-size: 0.8rem;
}
footer.site-footer .foot-links a{ color: var(--text-muted); }
footer.site-footer .foot-links a:hover{ color: var(--accent); }

/* ---------------------------------- Responsive nav ---------------------------------- */

@media (max-width: 760px){
  .nav-toggle{ display:flex; }
  nav.main-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background: #0a0d12;
    border-bottom: 1px solid var(--line);
    flex-direction:column;
    gap:0;
    display:none;
    padding: 8px 24px 18px;
  }
  nav.main-nav.open{ display:flex; }
  nav.main-nav a{ padding: 12px 0; border-bottom: 1px solid var(--line); }
}

/* Utility */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; }