/* DUARSOLUTIONS - estilos principales
   Cambia únicamente estas variables para adaptar los colores al logo real. */
:root {
  --primary: #00d9ff;
  --primary-dark: #008fa8;
  --secondary: #6c5ce7;
  --dark: #07111f;
  --dark-2: #0b1728;
  --surface: #101f32;
  --surface-2: #13263c;
  --text: #f5fbff;
  --muted: #9eb0c4;
  --border: rgba(0, 217, 255, .18);
  --white: #ffffff;
  --radius: 18px;
  --shadow: 0 25px 70px rgba(0,0,0,.30);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1160px, calc(100% - 40px)); margin: auto; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7,17,31,.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: 'Orbitron', sans-serif; font-weight: 700; letter-spacing: .05em; }
.brand-mark {
  width: 39px; height: 39px; display: grid; place-items: center;
  border: 1px solid var(--primary); color: var(--primary);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 50% 100%, 0 72%);
}
.brand-text { font-size: 16px; }
.brand-text span { color: var(--primary); }
.nav { display: flex; gap: 30px; color: var(--muted); font-size: 14px; font-weight: 600; }
.nav a { transition: .25s; }
.nav a:hover { color: var(--primary); }
.menu-toggle { display: none; background: none; color: var(--white); border: 0; font-size: 28px; cursor: pointer; }

.hero {
  min-height: 650px; display: flex; align-items: center;
  background:
    radial-gradient(circle at 80% 40%, rgba(0,217,255,.12), transparent 28%),
    radial-gradient(circle at 15% 90%, rgba(108,92,231,.14), transparent 28%),
    linear-gradient(135deg, #07111f, #091728 55%, #06101c);
  overflow: hidden;
}
.hero-grid { width: min(1160px, calc(100% - 40px)); margin: auto; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 40px; }
.eyebrow, .section-kicker { color: var(--primary); font-size: 11px; font-weight: 700; letter-spacing: .2em; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin-bottom: 22px; }
.eyebrow span { width: 26px; height: 2px; background: var(--primary); }
.hero h1 { font-family: 'Orbitron', sans-serif; font-size: clamp(42px, 6vw, 72px); line-height: 1.08; letter-spacing: -.04em; }
.hero h1 strong { color: var(--primary); }
.hero-copy > p { max-width: 600px; color: var(--muted); font-size: 17px; margin: 24px 0 32px; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { min-height: 48px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; border-radius: 9px; font-weight: 700; font-size: 14px; border: 1px solid transparent; cursor: pointer; transition: .25s; }
.btn-primary { background: var(--primary); color: #03101a; box-shadow: 0 12px 35px rgba(0,217,255,.18); }
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.08); }
.btn-outline { border-color: rgba(255,255,255,.2); color: var(--white); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.hero-visual { min-height: 500px; display: grid; place-items: center; }
.tech-orb { width: min(390px, 75vw); aspect-ratio: 1; position: relative; display: grid; place-items: center; }
.orb-core {
  width: 190px; height: 190px; border-radius: 50%; display: grid; place-items: center; text-align: center;
  background: radial-gradient(circle, rgba(0,217,255,.22), rgba(0,217,255,.03) 65%);
  border: 1px solid rgba(0,217,255,.45); box-shadow: 0 0 90px rgba(0,217,255,.16), inset 0 0 50px rgba(0,217,255,.08);
  color: var(--primary); font: 700 26px/1.1 'Orbitron', sans-serif;
}
.orb-core small { font-size: 9px; letter-spacing: .18em; }
.orbit { position: absolute; border: 1px solid rgba(0,217,255,.25); border-radius: 50%; transform: rotate(-24deg); }
.orbit-1 { width: 100%; height: 44%; }
.orbit-2 { width: 75%; height: 75%; transform: rotate(58deg); }
.node { position: absolute; width: 9px; height: 9px; background: var(--primary); border-radius: 50%; box-shadow: 0 0 20px var(--primary); }
.n1 { top: 25%; left: 7%; } .n2 { right: 4%; top: 43%; } .n3 { bottom: 15%; left: 30%; } .n4 { top: 8%; right: 27%; }

.slider-section { padding: 80px 0; background: #091524; }
.section-heading { max-width: 650px; margin-bottom: 38px; }
.section-heading.centered { margin-left: auto; margin-right: auto; text-align: center; }
.section-heading h2, .contact-info h2, .technology h2 { font-family: 'Orbitron', sans-serif; font-size: clamp(30px, 4vw, 46px); line-height: 1.18; margin-top: 12px; }
.section-heading h2 span, .contact-info h2 span, .technology h2 span { color: var(--primary); }
.section-heading p { color: var(--muted); margin-top: 15px; }
.slider { position: relative; }
.slide {
  display: none; grid-template-columns: 100px 1fr; gap: 25px; align-items: center;
  padding: 42px; min-height: 270px; border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(0,217,255,.07), rgba(108,92,231,.06));
}
.slide.active { display: grid; animation: fade .5s ease; }
@keyframes fade { from { opacity: .2; transform: translateX(10px); } to { opacity: 1; transform: none; } }
.slide-icon { width: 90px; height: 90px; display: grid; place-items: center; border: 1px solid var(--primary); border-radius: 20px; color: var(--primary); font: 700 25px 'Orbitron', sans-serif; }
.slide span { color: var(--primary); font-size: 11px; font-weight: 700; letter-spacing: .16em; }
.slide h3 { font-family: 'Orbitron', sans-serif; font-size: clamp(25px, 4vw, 39px); line-height: 1.2; margin: 8px 0 12px; }
.slide p { color: var(--muted); max-width: 650px; }
.slider-controls { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 22px; }
.slider-btn { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.16); background: transparent; color: white; border-radius: 50%; cursor: pointer; }
.slider-btn:hover { border-color: var(--primary); color: var(--primary); }
.dots { display: flex; gap: 8px; }
.dot { width: 8px; height: 8px; padding: 0; border: 0; border-radius: 50%; background: #526173; cursor: pointer; }
.dot.active { width: 25px; border-radius: 8px; background: var(--primary); }

.section { padding: 100px 0; }
.services { background: var(--dark); }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.service-card {
  position: relative; min-height: 360px; padding: 28px; border: 1px solid rgba(255,255,255,.09);
  background: var(--surface); border-radius: var(--radius); overflow: hidden; transition: .3s;
}
.service-card:hover { transform: translateY(-7px); border-color: var(--primary); box-shadow: var(--shadow); }
.service-card.featured { background: linear-gradient(160deg, #10283a, #111c30); border-color: rgba(0,217,255,.3); }
.card-number { position: absolute; top: 20px; right: 22px; font: 600 11px 'Orbitron', sans-serif; color: #526173; }
.service-icon { color: var(--primary); font: 700 26px 'Orbitron', sans-serif; margin: 35px 0 30px; }
.service-card h3 { font-family: 'Orbitron', sans-serif; font-size: 19px; line-height: 1.35; }
.service-card p { color: var(--muted); font-size: 14px; margin: 15px 0 22px; }
.service-card a { color: var(--primary); font-size: 13px; font-weight: 700; }

.technology { padding: 90px 0; background: linear-gradient(110deg, #081523, #0d1c2e); border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06); }
.technology-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.tech-copy > p { color: var(--muted); font-size: 17px; }
.tech-points { display: grid; gap: 13px; margin-top: 28px; }
.tech-points div { display: flex; align-items: center; gap: 16px; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
.tech-points b { color: var(--primary); font-family: 'Orbitron', sans-serif; font-size: 12px; }
.tech-points span { font-weight: 600; }

.contact { background: var(--dark-2); }
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; align-items: start; }
.contact-info > p { color: var(--muted); margin: 20px 0 35px; max-width: 420px; }
.contact-line { display: flex; gap: 15px; align-items: flex-start; margin: 20px 0; }
.contact-symbol { min-width: 43px; height: 43px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 10px; color: var(--primary); font-size: 11px; font-weight: 800; }
.contact-line small { display: block; color: var(--muted); font-size: 10px; letter-spacing: .16em; margin-bottom: 3px; }
.contact-line a { color: var(--primary); font-weight: 700; }
.contact-line span { color: #d8e3ed; }

.contact-form { padding: 32px; background: var(--surface); border: 1px solid rgba(255,255,255,.08); border-radius: var(--radius); box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.field { margin-bottom: 18px; }
.field label { display: block; margin-bottom: 7px; font-size: 12px; font-weight: 700; color: #dce7ef; }
.field label b { color: var(--primary); }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid rgba(255,255,255,.13); background: #091727; color: var(--text);
  border-radius: 9px; padding: 13px 14px; outline: none; font: inherit; transition: .2s;
}
.field input::placeholder, .field textarea::placeholder { color: #5e7084; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,217,255,.08); }
.field select { cursor: pointer; }
.field textarea { resize: vertical; min-height: 125px; }
.submit-btn { width: 100%; margin-top: 3px; }
.form-note { color: #6e8195; font-size: 10px; text-align: center; margin-top: 12px; }

.footer { background: #040b14; padding-top: 45px; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; padding-bottom: 40px; }
.footer-brand p { max-width: 430px; color: #718297; font-size: 13px; margin-top: 17px; }
.footer-contact { justify-self: end; display: grid; gap: 8px; color: #8192a5; font-size: 13px; }
.footer-contact strong { color: var(--primary); font-size: 11px; letter-spacing: .18em; margin-bottom: 5px; }
.footer-contact a { color: var(--white); font-weight: 600; }
.footer-bottom { padding: 17px 0; border-top: 1px solid rgba(255,255,255,.07); display: flex; justify-content: space-between; gap: 20px; color: #526173; font-size: 11px; }

@media (max-width: 900px) {
  .hero-grid, .technology-grid, .contact-grid { grid-template-columns: 1fr; gap: 45px; }
  .hero { padding: 80px 0 50px; }
  .hero-visual { min-height: 380px; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { gap: 30px; }
}
@media (max-width: 650px) {
  .container, .hero-grid { width: min(100% - 28px, 1160px); }
  .menu-toggle { display: block; }
  .nav { position: absolute; left: 14px; right: 14px; top: 72px; display: none; flex-direction: column; padding: 18px; background: #0a1727; border: 1px solid rgba(255,255,255,.1); border-radius: 12px; }
  .nav.open { display: flex; }
  .hero h1 { font-size: 42px; }
  .hero-visual { min-height: 300px; }
  .orb-core { width: 145px; height: 145px; font-size: 20px; }
  .slide { grid-template-columns: 1fr; padding: 27px; }
  .slide-icon { width: 65px; height: 65px; }
  .service-grid, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 300px; }
  .footer-contact { justify-self: start; }
  .footer-bottom { flex-direction: column; }
  .section { padding: 70px 0; }
}