/* ============================================================
   CSS VARIABLES — edit these to change the entire color scheme
   ============================================================ */
:root {
  --color-earth-900: #2C1810;
  --color-earth-800: #3E2723;
  --color-earth-700: #4E342E;
  --color-earth-600: #5D4037;
  --color-earth-500: #6D4C41;
  --color-earth-400: #8D6E63;
  --color-earth-300: #A1887F;
  --color-earth-200: #BCAAA4;
  --color-earth-100: #D7CCC8;
  --color-earth-50:  #EFEBE9;

  --color-ochre:     #C8A951;
  --color-ochre-dark: #A68A2E;
  --color-green-deep: #2E4A3A;
  --color-green-mid:  #4A7C5C;
  --color-green-soft: #7BA68E;
  --color-cream:      #FAF6F0;
  --color-cream-dark: #F0EAE0;
  --color-white:      #FFFFFF;
  --color-text:       #2C1810;
  --color-text-muted: #6D4C41;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max-width: 1100px;
  --nav-height: auto;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 130px; /* nav ~110px + padding */
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-cream);
  line-height: 1.7;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--color-earth-600); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-ochre-dark); }

/* ============================================================
   NAVIGATION — Header academic cu logo-uri (2 rânduri)
   Rândul 1: Logo AR + Titlu + Logo UAIC
   Rândul 2: Linkuri navigare
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(44, 24, 16, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid rgba(200,169,81,0.4);
}

.nav-inner {
  max-width: 1200px;
  width: 100%; margin: 0 auto; padding: 0 24px;
  display: flex; flex-direction: column;
}

/* ── Rândul 1: Brand (logo-uri + titlu) ── */
.nav-brand {
  display: flex; align-items: center; justify-content: center;
  gap: 16px;
  padding: 10px 0 6px;
}

.nav-logo {
  height: 52px; width: auto;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 3px rgba(0,0,0,0.3));
}
.nav-logo--uaic { height: 48px; }

.nav-title {
  text-align: center;
  line-height: 1.2;
}
.nav-title-main {
  font-family: var(--font-display);
  color: var(--color-ochre);
  font-size: clamp(0.75rem, 1.6vw, 1.05rem);
  font-weight: 700;
  letter-spacing: 1.5px;
  display: block;
}
.nav-title-sub {
  font-family: var(--font-body);
  color: var(--color-earth-200);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  display: block;
  margin-top: 2px;
}

/* ── Rândul 2: Linkuri ── */
.nav-links {
  display: flex; gap: 4px; align-items: center;
  justify-content: center; flex-wrap: wrap;
  padding: 4px 0 8px;
  border-top: 1px solid rgba(200,169,81,0.15);
}

.nav-links a {
  color: var(--color-earth-100);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s;
}
.nav-links a:hover { color: var(--color-ochre); background: rgba(255,255,255,0.06); }

.lang-toggle {
  background: var(--color-ochre);
  color: var(--color-earth-900) !important;
  font-weight: 700 !important;
  padding: 4px 10px !important;
  border-radius: 4px !important;
  cursor: pointer;
  border: none;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-family: var(--font-body);
  transition: all 0.2s;
}
.lang-toggle:hover { background: var(--color-ochre-dark); }

/* Mobile menu */
.nav-hamburger {
  display: none; background: none; border: none; cursor: pointer; padding: 8px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--color-earth-100); margin: 5px 0;
  transition: all 0.3s;
}

@media (max-width: 860px) {
  .nav-hamburger { display: block; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(44,24,16,0.98); flex-direction: column;
    padding: 16px 24px; gap: 4px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  margin-top: 110px; /* nav height ~110px */
  min-height: 85vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background:
    linear-gradient(165deg, var(--color-earth-800) 0%, var(--color-earth-700) 40%, var(--color-green-deep) 100%);
}

.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(200,169,81,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 80% 20%, rgba(74,124,92,0.15) 0%, transparent 60%);
}

.hero::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 200px;
  background: linear-gradient(to top, rgba(44,24,16,0.4), transparent);
}

.hero-content {
  position: relative; z-index: 2;
  text-align: center; padding: 60px 24px;
  max-width: 860px;
}

.hero-edition {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-ochre);
  letter-spacing: 3px;
  text-transform: uppercase;
  border: 1px solid var(--color-ochre);
  padding: 6px 20px;
  border-radius: 30px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--color-cream);
  line-height: 1.25;
  margin-bottom: 20px;
  font-weight: 700;
}

.hero h1 em {
  display: block;
  font-style: italic;
  font-weight: 400;
  color: var(--color-ochre);
  font-size: 0.85em;
  margin-top: 8px;
}

.hero-theme {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  color: var(--color-green-soft);
  font-style: italic;
  margin-bottom: 36px;
  line-height: 1.5;
}

.hero-meta {
  display: flex; gap: 40px; justify-content: center; flex-wrap: wrap;
  color: var(--color-earth-100);
  font-size: 1.05rem;
}

.hero-meta span { display: flex; align-items: center; gap: 8px; }

.hero-meta svg { width: 20px; height: 20px; stroke: var(--color-ochre); fill: none; stroke-width: 2; }

.hero-cta {
  margin-top: 44px;
  display: inline-block;
  background: var(--color-ochre);
  color: var(--color-earth-900);
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 6px;
  font-size: 1rem;
  letter-spacing: 0.5px;
  transition: all 0.25s;
  text-transform: uppercase;
}
.hero-cta:hover { background: var(--color-ochre-dark); color: var(--color-earth-900); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.3); }

/* ★ Logo-uri — decomentați/modificați când se decide amplasarea */
.hero-logos {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 720px;
  margin: 0 auto 32px;
}

.hero-logo {
  height: 90px;
  width: auto;
  filter: brightness(1.1);
  transition: transform 0.3s;
}

.hero-logo:hover { transform: scale(1.05); }

@media (max-width: 600px) {
  .hero-logo { height: 60px; }
  .hero-logos { max-width: 90%; margin-bottom: 24px; }
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: 80px 24px;
}

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

.section-dark {
  background: var(--color-earth-800);
  color: var(--color-earth-100);
}
.section-dark h2 { color: var(--color-ochre); }
.section-dark a { color: var(--color-ochre); }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--color-earth-800);
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 40px;
  max-width: 640px;
}

.section-dark .section-subtitle { color: var(--color-earth-200); }

.section-divider {
  width: 60px; height: 3px;
  background: var(--color-ochre);
  margin-bottom: 24px;
  border-radius: 2px;
}

/* ============================================================
   ABOUT / INVITATION
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
}

.about-text p { margin-bottom: 16px; }

.about-highlights {
  background: var(--color-white);
  border-radius: 12px;
  padding: 32px;
  border-left: 4px solid var(--color-ochre);
  box-shadow: 0 2px 16px rgba(0,0,0,0.04);
}

.highlight-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-earth-50);
}
.highlight-item:last-child { border-bottom: none; }

.highlight-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: 4px;
}

.highlight-value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-earth-800);
}

/* ============================================================
   PROGRAM / TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 48px;
}

.timeline::before {
  content: '';
  position: absolute; left: 18px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-ochre), var(--color-green-mid), var(--color-earth-300));
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item::before {
  content: '';
  position: absolute; left: -36px; top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--color-cream);
  border: 3px solid var(--color-ochre);
  z-index: 1;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-ochre-dark);
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  font-weight: 700;
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--color-earth-800);
  margin-bottom: 6px;
}

.timeline-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ============================================================
   PROGRAM — Two-column layout (timeline + sidebar)
   ============================================================ */
.program-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

@media (max-width: 900px) {
  .program-grid { grid-template-columns: 1fr; }
}

.program-timeline {
  /* inherits .timeline styles */
}

.program-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 130px;
}

.program-sidebar .info-card {
  background: var(--color-white);
  border: 1px solid var(--color-earth-100);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}

.program-sidebar .info-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--color-earth-700);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-ochre);
}

.program-sidebar .info-card p {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text);
}

.program-sidebar .info-card a {
  color: var(--color-ochre-dark);
  font-weight: 600;
}

.fee-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-top: 8px;
}
.fee-table th, .fee-table td {
  padding: 6px 8px;
  text-align: left;
  border-bottom: 1px solid var(--color-earth-100);
}
.fee-table th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
  font-weight: 600;
}
.fee-table td:first-child { font-weight: 500; }

.download-btn {
  display: inline-block;
  background: var(--color-ochre);
  color: var(--color-earth-900) !important;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  text-align: center;
  transition: background 0.2s;
}
.download-btn:hover { background: var(--color-ochre-dark); }

/* ============================================================
   ORGANIZATORI & COLABORATORI
   ============================================================ */
.org-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: stretch;
}

@media (max-width: 768px) {
  .org-grid { grid-template-columns: 1fr; gap: 32px; }
}
.org-column {
  display: flex;
  flex-direction: column;
}

.org-column .org-card:last-child {
  flex: 1;
}
.org-column h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-earth-700);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-ochre);
}

.org-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-white);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 12px;
  border: 1px solid var(--color-earth-100);
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.org-card-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.15));
}

.org-card-text h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--color-earth-700);
  font-weight: 600;
  margin-bottom: 4px;
}

.org-card-text p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ============================================================
   COMMITTEES
   ============================================================ */
.committee-card--wide {
  grid-column: 1 / -1;
}

.committee-list--2col {
  columns: 2;
  column-gap: 40px;
}

@media (max-width: 768px) {
  .committee-list--2col { columns: 1; }
}

.committee-honorary {
  font-size: 1rem;
  color: var(--color-earth-600);
  margin-bottom: 16px;
  padding: 12px 16px;
  background: rgba(200,169,81,0.08);
  border-radius: 6px;
  text-align: center;
}
.committee-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

@media (max-width: 768px) {
  .committee-grid { grid-template-columns: 1fr; }
}

.committee-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.04);
}

.committee-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-earth-700);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--color-ochre);
}

.committee-list {
  list-style: none;
}

.committee-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-earth-50);
  font-size: 0.95rem;
}
.committee-list li:last-child { border-bottom: none; }

.committee-list .affiliation {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  font-style: italic;
}

.placeholder-notice {
  background: var(--color-cream-dark);
  border: 1px dashed var(--color-earth-200);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ============================================================
   REGISTRATION / INFO CARDS
   ============================================================ */
.info-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.info-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(200,169,81,0.2);
  border-radius: 12px;
  padding: 28px;
}

.info-card h3 {
  font-family: var(--font-display);
  color: var(--color-ochre);
  font-size: 1.15rem;
  margin-bottom: 14px;
}

.info-card p, .info-card li {
  color: var(--color-earth-200);
  font-size: 0.95rem;
  line-height: 1.7;
}

.info-card ul { list-style: none; }
.info-card ul li { padding: 4px 0; }
.info-card ul li::before {
  content: '→ ';
  color: var(--color-ochre);
  font-weight: 700;
}

.info-card a {
  color: var(--color-ochre);
  font-weight: 600;
}

/* ============================================================
   MAP
   ============================================================ */
#map {
  width: 100%;
  height: 450px;
  border-radius: 12px;
  margin-top: 32px;
  border: 2px solid var(--color-earth-200);
}

.leaflet-routing-container { display: none !important; }

.map-legend {
  margin-top: 16px;
  display: flex; gap: 24px; flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.map-legend span { display: flex; align-items: center; gap: 6px; }
.map-dot {
  width: 12px; height: 12px; border-radius: 50%; display: inline-block;
}
.map-dot--venue { background: var(--color-ochre); }
.map-dot--field { background: var(--color-green-mid); }

/* ============================================================
   PROFILE PREVIEW CARDS
   ============================================================ */
.profile-previews {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

@media (max-width: 768px) {
  .profile-previews { grid-template-columns: 1fr; }
}

.profile-preview-card {
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  border: 3px solid transparent;
  transition: all 0.3s;
  cursor: pointer;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
}

.profile-preview-card:hover {
  border-color: var(--color-ochre);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  transform: translateY(-3px);
}

.profile-preview-card.highlighted {
  border-color: #B22222;
  box-shadow: 0 0 0 3px rgba(178,34,34,0.2), 0 4px 20px rgba(0,0,0,0.12);
}

.profile-preview-sketch {
  padding: 16px;
  text-align: center;
  background: var(--color-cream-dark);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-preview-info {
  padding: 16px 20px;
}

.profile-preview-info h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-earth-800);
  margin-bottom: 6px;
  line-height: 1.3;
}

.profile-preview-class {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-ochre-dark);
  margin-bottom: 6px;
}

.profile-preview-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.profile-preview-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-ochre-dark);
  transition: color 0.2s;
}

.profile-preview-card:hover .profile-preview-link {
  color: var(--color-earth-800);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-earth-900);
  color: var(--color-earth-300);
  padding: 48px 24px 32px;
  text-align: center;
  font-size: 0.9rem;
}

.footer-logos {
  display: flex; justify-content: center; gap: 32px;
  margin-bottom: 24px; flex-wrap: wrap; align-items: center;
}

.footer-logo-placeholder {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem;
  color: var(--color-earth-400);
  text-align: center;
  padding: 8px;
}

.footer p { margin-bottom: 8px; }
.footer a { color: var(--color-ochre); }

/* ============================================================
   UTILITIES
   ============================================================ */
.text-ochre { color: var(--color-ochre); }
.fw-700 { font-weight: 700; }
.mt-16 { margin-top: 16px; }
.mb-8 { margin-bottom: 8px; }

/* ============================================================
   LANGUAGE TOGGLE — hide/show elements
   ============================================================ */
body [lang="en"] { display: none; }
body.lang-en [lang="ro"] { display: none; }
body.lang-en [lang="en"] { display: revert; }
body.lang-en span[lang="en"] { display: inline; }
body.lang-en div[lang="en"] { display: block; }
body.lang-en p[lang="en"] { display: block; }
body.lang-en h1[lang="en"] { display: block; }
body.lang-en h2[lang="en"] { display: block; }
body.lang-en h4[lang="en"] { display: block; }
body.lang-en a[lang="en"] { display: inline; }

/* ============================================================
   ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .nav, .hero-cta, .lang-toggle, .nav-hamburger { display: none; }
  .hero { min-height: auto; padding: 40px 24px; }
  .section { padding: 32px 0; }
}