/* ============================================================
   Adfaber — Design System
   Apple-inspired: clean, minimal, generous whitespace
   ============================================================ */

:root {
  --color-primary:   #0170B9;
  --color-primary-hover: #015a96;
  --color-dark:      #1d1d1f;
  --color-body:      #3a3a3a;
  --color-subtle:    #6e6e73;
  --color-bg:        #ffffff;
  --color-bg-alt:    #f5f5f7;
  --color-border:    #d2d2d7;
  --font:            -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  --container:       1200px;
  --radius:          12px;
  --radius-sm:       8px;
  --shadow:          0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover:    0 4px 24px rgba(0,0,0,0.12);
  --transition:      0.2s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  color: var(--color-body);
  background: var(--color-bg);
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-hover); }
ul { list-style: none; }

/* ── Container ─────────────────────────────────────────────── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  color: var(--color-dark);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }
p  { font-size: 1.0625rem; line-height: 1.7; color: var(--color-body); }
.lead { font-size: 1.25rem; color: var(--color-subtle); line-height: 1.6; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 980px;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff !important;
}

/* ── Header ────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 12px rgba(0,0,0,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.header-logo img { height: 36px; width: auto; }
.header-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.header-nav a {
  color: var(--color-dark);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.header-nav a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}
.header-nav a.active { color: var(--color-primary); }

/* CTA pill în header */
.header-cta {
  display: inline-block;
  padding: 8px 20px;
  background: var(--color-primary);
  color: #fff !important;
  border-radius: 980px;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
  margin-left: 8px;
  white-space: nowrap;
}
.header-cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  color: #fff !important;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
  position: relative;
  z-index: 1001;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition);
}
.burger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Language Switcher ──────────────────────────────────────── */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
}
.lang-switcher a {
  color: var(--color-subtle);
  text-decoration: none;
  padding: 4px 6px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.lang-switcher a:hover { color: var(--color-dark); background: var(--color-bg-alt); }
.lang-switcher a.active { color: var(--color-primary); }
.lang-switcher span { color: var(--color-border); }

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 32px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo img { height: 40px; margin-bottom: 16px; }
.footer-tagline { font-size: 0.875rem; color: var(--color-subtle); }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--color-border);
  color: var(--color-body);
  font-size: 0.875rem;
  transition: all var(--transition);
}
.footer-social a:hover { background: var(--color-primary); color: #fff; }
.footer-col h5 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-subtle);
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: var(--color-body); font-size: 0.9375rem; }
.footer-col ul li a:hover { color: var(--color-primary); }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--color-body);
  margin-bottom: 10px;
}
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-bottom p { font-size: 0.8125rem; color: var(--color-subtle); }
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { font-size: 0.8125rem; color: var(--color-subtle); }
.footer-bottom-links a:hover { color: var(--color-primary); }

/* ── Page Header (titlu pagina) ────────────────────────────── */
.page-hero {
  padding: 80px 0 60px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 60px;
}
.page-hero h1 { margin-bottom: 16px; }
.page-hero .lead { max-width: 640px; margin: 0 auto; }

/* ── Content (text pages) ──────────────────────────────────── */
.content-body {
  max-width: 760px;
  margin: 0 auto;
  padding-bottom: 80px;
}
.content-body h2 {
  font-size: 1.5rem;
  margin: 40px 0 12px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}
.content-body h2:first-child { border-top: none; padding-top: 0; }
.content-body h3 { font-size: 1.125rem; margin: 24px 0 8px; color: var(--color-dark); }
.content-body p  { margin-bottom: 16px; }
.content-body ul, .content-body ol {
  padding-left: 24px;
  margin-bottom: 16px;
  list-style: disc;
}
.content-body ol { list-style: decimal; }
.content-body li { margin-bottom: 6px; font-size: 1.0625rem; line-height: 1.7; }
.content-body strong { color: var(--color-dark); }
.content-body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 40px 0;
}
.content-body a { text-decoration: underline; text-underline-offset: 3px; }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

/* ── Grid layouts ───────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ── Section spacing ───────────────────────────────────────── */
.section { padding: 80px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-title { text-align: center; margin-bottom: 48px; }
.section-title h2 { margin-bottom: 12px; }
.section-title p { color: var(--color-subtle); max-width: 560px; margin: 0 auto; }

/* ── Team Grid ──────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin: 40px 0;
}
.team-grid figure {
  margin: 0 0 12px;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--color-bg-alt);
}
.team-grid figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius);
}
.team-grid h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-dark);
  margin: 0 0 4px;
}
.team-grid p {
  font-size: 0.875rem;
  color: var(--color-subtle);
  margin: 0;
  line-height: 1.4;
}

/* ── Article Cards ──────────────────────────────────────────── */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 32px 0;
}
article.article-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
article.article-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-dark);
  line-height: 1.4;
}
article.article-card p {
  font-size: 0.875rem;
  color: var(--color-subtle);
  flex: 1;
  line-height: 1.5;
  margin: 0;
}
article.article-card a.read-more {
  font-size: 0.875rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  margin-top: 4px;
}
article.article-card a.read-more:hover { text-decoration: underline; }

/* ── Icon List ───────────────────────────────────────────────── */
.content-body ul.icon-list {
  list-style: none;
  padding: 0;
  margin: 16px 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.content-body ul.icon-list li {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.content-body ul.icon-list li .icon {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.content-body ul.icon-list li strong { color: var(--color-dark); font-size: 0.95rem; }
.content-body ul.icon-list li p { font-size: 0.875rem; color: var(--color-subtle); margin: 0; }

/* ── Blockquote ──────────────────────────────────────────────── */
.content-body blockquote {
  border-left: 3px solid var(--color-primary);
  margin: 32px 0;
  padding: 16px 24px;
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.content-body blockquote p {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-dark);
  margin: 0;
}

/* ── Partner Logo Grid ──────────────────────────────────────── */
.partners-section { margin: 48px 0; }
.partners-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: center;
}
.partners-grid--large .partner-logo { height: 80px; }
.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 64px;
  padding: 12px 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
  text-decoration: none;
}
.partner-logo:hover {
  box-shadow: var(--shadow);
  border-color: var(--color-primary);
}
.partner-logo img {
  max-height: 100%;
  max-width: 140px;
  width: auto;
  object-fit: contain;
  filter: grayscale(0.2);
  transition: filter var(--transition);
}
.partner-logo:hover img { filter: none; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: repeat(3, 1fr); }
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .header-nav { display: none; }
  .header-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 100vh;
    height: 100dvh;
    background: var(--color-bg);
    padding: 84px 24px 24px;
    gap: 4px;
    overflow-y: auto;
    z-index: 999;
  }
  .header-nav.open ul { flex-direction: column; gap: 4px; }
  .header-nav.open a { font-size: 1.125rem; padding: 12px 16px; }
  .burger { display: flex; }
  .header-cta { display: none; }
  .lang-switcher { margin-left: auto; }
  .section { padding: 48px 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .articles-grid { grid-template-columns: 1fr; }
  .content-body ul.icon-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .page-hero { padding: 48px 0 40px; }
}