/* ─────────────────────────────────────────────
   KM Digital Business Consulting — Design System
   Brand: #F5A200 orange · #7A7A7A gray · Open Sans Light
   ───────────────────────────────────────────── */

@font-face {
  font-family: 'Open Sans';
  src: url('OpenSans-Light.ttf') format('truetype');
  font-weight: 300;
  font-style: normal;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --orange:    #F5A200;
  --orange-dk: #D48A00;
  --gray:      #7A7A7A;
  --gray-dk:   #3A3A3A;
  --gray-lt:   #E8E8E8;
  --white:     #FFFFFF;
  --bg-soft:   #F9F9F7;
  --font:      'Open Sans', Arial, sans-serif;
  --fw-light:  300;
  --fw-regular:400;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-weight: var(--fw-light);
  color: var(--gray-dk);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font);
  font-weight: var(--fw-light);
  color: var(--gray-dk);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
p  { color: var(--gray); margin-bottom: 1rem; }
a  { color: var(--orange); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--orange-dk); }
strong { font-weight: var(--fw-regular); color: var(--gray-dk); }

/* ── Layout ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}
section { padding: 5rem 0; }
section:nth-child(even) { background: var(--bg-soft); }

/* ── Header ── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--gray-lt);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}
.logo img {
  height: 40px;
  width: auto;
  display: block;
}
nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
nav a {
  font-size: 0.875rem;
  color: var(--gray);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--transition);
}
nav a:hover,
nav a.active { color: var(--orange); }
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 1.5rem;
  padding-left: 1.5rem;
  border-left: 1px solid var(--gray-lt);
}
.lang-switcher a {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
}
.lang-switcher a.active { color: var(--orange); }
.lang-switcher span { color: var(--gray-lt); font-size: 0.75rem; }

/* ── Mobile nav toggle ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--gray-dk);
  transition: var(--transition);
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--white);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('hero.svg');
  background-size: cover;
  background-position: center right;
  opacity: 0.35;
}
.hero-accent {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--orange);
}
.hero-two-col {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 2rem 5rem calc(2rem + 4px + 2rem);
  gap: 4rem;
}
.hero-content {
  position: relative;
  flex: 1 1 55%;
}
.hero-photo {
  flex: 0 0 38%;
  max-width: 380px;
}
.hero-photo img {
  width: 100%;
  height: auto;
  display: block;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1.5rem;
}
.hero h1 { margin-bottom: 1.5rem; }
.hero-sub {
  font-size: 1.125rem;
  color: var(--gray);
  margin-bottom: 2.5rem;
  max-width: 500px;
}
.btn-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font);
  font-weight: var(--fw-light);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--orange);
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--orange);
  color: var(--white);
}
.btn-primary:hover { background: var(--orange-dk); border-color: var(--orange-dk); color: var(--white); }
.btn-outline {
  background: transparent;
  color: var(--orange);
}
.btn-outline:hover { background: var(--orange); color: var(--white); }

/* ── Section headings ── */
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.75rem;
}
.section-rule {
  width: 40px;
  height: 2px;
  background: var(--orange);
  margin: 1.5rem 0 3rem;
}

/* ── Services cards ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}
.card {
  padding: 2.5rem;
  border: 1px solid var(--gray-lt);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.card:hover {
  border-color: var(--orange);
  box-shadow: 0 4px 24px rgba(245,162,0,0.08);
}
.card-number {
  font-size: 2.5rem;
  font-weight: var(--fw-light);
  color: var(--gray-lt);
  line-height: 1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}
.card h3 { color: var(--gray-dk); }

/* ── About teaser / two-col ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.two-col .col-accent {
  width: 2px;
  height: 80px;
  background: var(--orange);
  margin-bottom: 2rem;
}

/* ── Certifications bar ── */
.cert-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  padding: 3rem 0;
  border-top: 1px solid var(--gray-lt);
  border-bottom: 1px solid var(--gray-lt);
}
.cert-item {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--gray);
  padding: 0.5rem 1rem;
  border: 1px solid var(--gray-lt);
}

/* ── Generic page content ── */
.page-hero {
  padding: 6rem 0 4rem;
  border-bottom: 1px solid var(--gray-lt);
}
.page-hero .hero-eyebrow { margin-bottom: 1rem; }
.page-body { padding: 4rem 0; }
.page-body h2 { margin-top: 2.5rem; margin-bottom: 1rem; }
.page-body h3 { color: var(--orange); margin-top: 2rem; margin-bottom: 0.5rem; }
.page-body ul {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}
.page-body ul li {
  padding: 0.4rem 0 0.4rem 1.5rem;
  position: relative;
  color: var(--gray);
  border-bottom: 1px solid var(--gray-lt);
}
.page-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 1px;
  background: var(--orange);
}

/* ── Contact form ── */
.contact-form { max-width: 600px; }
.form-group { margin-bottom: 1.5rem; }
.form-group label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.5rem;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--gray-lt);
  background: var(--white);
  font-family: var(--font);
  font-weight: var(--fw-light);
  font-size: 1rem;
  color: var(--gray-dk);
  outline: none;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--orange); }
.form-group textarea { height: 160px; resize: vertical; }

/* ── Footer ── */
footer {
  padding: 3rem 0;
  border-top: 1px solid var(--gray-lt);
  background: var(--white);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-copy { font-size: 0.8rem; color: var(--gray); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.8rem; color: var(--gray); }
.footer-links a:hover { color: var(--orange); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: 2.5rem; }
  .nav-toggle { display: flex; }
  nav.nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--gray-lt);
    padding: 1rem 0;
  }
  nav.nav-links.open { display: flex; }
  nav.nav-links a {
    padding: 0.75rem 2rem;
    border-bottom: 1px solid var(--gray-lt);
  }
  .lang-switcher {
    margin: 0.5rem 2rem;
    padding: 0.75rem 0;
    border-left: none;
    border-top: 1px solid var(--gray-lt);
  }
  .hero-two-col { flex-direction: column; padding: 3rem 1.5rem; gap: 2rem; }
  .hero-photo { max-width: 260px; margin: 0 auto; }
  .hero-content { flex: none; }
  section { padding: 3rem 0; }
}