/* Altec Group — design system
   Colors extracted from public_html/assets/img/altec-logo.png:
   red #ED1C24, blue #00A2E8. Headline font (Oswald) chosen to echo the
   bold condensed all-caps lettering in the logo; body text uses a plain
   readable sans-serif. */

@import url("https://fonts.googleapis.com/css2?family=Oswald:wght@500;600;700&family=Inter:wght@400;500;600&display=swap");

:root {
  --color-red: #ed1c24;
  --color-red-dark: #c8151b;
  --color-blue: #00a2e8;
  --color-blue-dark: #0088c6;
  --color-ink: #1c1c1c;
  --color-body: #4a4a4a;
  --color-muted: #737373;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f8fa;
  --color-border: #e4e6ea;

  --font-heading: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --container-width: 1140px;
  --radius: 6px;
  --shadow: 0 2px 10px rgba(28, 28, 28, 0.06);
  --shadow-hover: 0 8px 24px rgba(28, 28, 28, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-ink);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 700; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; letter-spacing: 0.02em; }

p { margin: 0 0 1em; }

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover { color: var(--color-blue-dark); }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.site-header {
  border-bottom: 3px solid var(--color-red);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 0.6rem;
  padding-bottom: 0.6rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand img {
  height: 52px;
  width: auto;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.main-nav > ul > li {
  position: relative;
}

.main-nav a {
  display: inline-block;
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.4rem 0.1rem;
  border-bottom: 2px solid transparent;
}

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

.main-nav ul ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-blue);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-hover);
  padding: 0.4rem 0;
  min-width: 220px;
  gap: 0;
}

.main-nav li:hover > ul { display: flex; }

.main-nav ul ul li { width: 100%; }

.main-nav ul ul a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-bottom: none;
}
.main-nav ul ul a:hover { background: var(--color-bg-alt); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.lang-switch a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  opacity: 0.55;
  filter: grayscale(70%);
  transition: opacity 0.15s ease, filter 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.lang-switch a .flag {
  font-size: 1.15rem;
  line-height: 1;
}
.lang-switch a.active {
  opacity: 1;
  filter: grayscale(0%);
  background: var(--color-bg-alt);
  box-shadow: 0 0 0 2px var(--color-red);
  transform: scale(1.05);
}
.lang-switch a:hover:not(.active) {
  opacity: 1;
  filter: grayscale(0%);
  transform: scale(1.05);
}

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

.hero {
  background:
    linear-gradient(120deg, rgba(237, 28, 36, 0.94) 0%, rgba(237, 28, 36, 0.88) 45%, rgba(0, 162, 232, 0.88) 100%);
  color: #fff;
  padding: 4rem 0;
}

.hero h1 {
  color: #fff;
  max-width: 34rem;
}

.hero p {
  color: rgba(255, 255, 255, 0.92);
  font-size: 1.1rem;
  max-width: 34rem;
}

.hero .btn { margin-top: 0.5rem; }

/* ---------- Slideshow ---------- */

.slideshow {
  position: relative;
  width: 100%;
  height: min(70vh, 560px);
  overflow: hidden;
  background: var(--color-ink);
}

.slideshow .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease;
}
.slideshow .slide.is-active {
  opacity: 1;
  visibility: visible;
}

.slideshow .slide img,
.slideshow .slide video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slideshow .slide-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  padding: 2.5rem 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent);
  color: #fff;
  box-sizing: border-box;
}
.slideshow .slide-caption h1 { color: #fff; max-width: 40rem; margin: 0 auto 0.4em; }
.slideshow .slide-caption p { max-width: 40rem; margin: 0 auto 0.8em; }
.slideshow .slide-caption .btn,
.slideshow .slide-caption h1,
.slideshow .slide-caption p {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  box-sizing: border-box;
}

.slide-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.6rem;
  cursor: pointer;
  z-index: 2;
}
.slide-nav.prev { left: 1rem; }
.slide-nav.next { right: 1rem; }
.slide-nav:hover { background: var(--color-red); }

.slide-dots {
  position: absolute;
  bottom: 1rem;
  right: 1.5rem;
  display: flex;
  gap: 0.5rem;
  z-index: 2;
}
.slide-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  padding: 0;
}
.slide-dots button.is-active { background: var(--color-red); }

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

.section {
  padding: 3rem 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.section-head .link-more {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 0.5rem;
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.card h3 {
  margin-bottom: 0.35rem;
}

.card .brand-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-red);
  background: rgba(237, 28, 36, 0.08);
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.6rem;
}

.card p:last-child { margin-bottom: 0; }

.card-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.card-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border);
}
.card-list li:last-child { border-bottom: none; }

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

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius);
  background: var(--color-red);
  color: #fff;
  border: 2px solid var(--color-red);
  cursor: pointer;
}
.btn:hover {
  background: var(--color-red-dark);
  border-color: var(--color-red-dark);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: #fff;
}
.btn-outline:hover {
  background: #fff;
  color: var(--color-red);
}

.btn-blue {
  background: var(--color-blue);
  border-color: var(--color-blue);
}
.btn-blue:hover {
  background: var(--color-blue-dark);
  border-color: var(--color-blue-dark);
}

/* ---------- Forms ---------- */

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1.1rem;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-ink);
}

.form-field input,
.form-field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-ink);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.65rem 0.8rem;
  background: #fff;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(0, 162, 232, 0.15);
}

.form-note {
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: rgba(0, 162, 232, 0.08);
  border: 1px solid rgba(0, 162, 232, 0.25);
  color: var(--color-ink);
}

.form-note.error {
  background: rgba(237, 28, 36, 0.06);
  border-color: rgba(237, 28, 36, 0.3);
}

/* ---------- Contact info blocks ---------- */

.info-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}
.info-list li {
  padding-left: 1.6rem;
  position: relative;
  margin-bottom: 0.5rem;
}
.info-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  background: var(--color-red);
  border-radius: 50%;
}

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

.site-footer {
  background: var(--color-ink);
  color: #d8d8d8;
  margin-top: 3rem;
}

.site-footer .container {
  padding-top: 3rem;
  padding-bottom: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.site-footer h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 0.9rem;
}

.site-footer a { color: #d8d8d8; }
.site-footer a:hover { color: var(--color-blue); }

.site-footer .brand-line {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}
.site-footer .brand-line img { height: 34px; }

.site-footer .social-links {
  display: flex;
  gap: 0.9rem;
  margin-top: 0.5rem;
}
.site-footer .social-links a {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  padding: 1rem 0;
  font-size: 0.8rem;
  color: #999;
}

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

@media (max-width: 760px) {
  .site-header .container { flex-direction: column; align-items: flex-start; }
  .main-nav ul { gap: 1rem; }
  .main-nav ul ul { position: static; box-shadow: none; border: none; min-width: 0; padding-left: 1rem; }
  .main-nav li:hover > ul { display: block; }
  .hero { padding: 2.5rem 0; }
}