/* =========================================================
   American Corner Banja Luka — Events site
   ========================================================= */

:root{
  --navy: #23336f;
  --navy-soft: #2d4189;
  --red: #9b1a1f;
  --red-soft: #c33940;
  --white: #ffffff;
  --bg: #fbfbfd;
  --ink: #1a2233;
  --ink-soft: #5b6478;
  --border: #e6e8ee;
  --shadow: 0 8px 24px rgba(35, 51, 111, 0.08);
  --shadow-hover: 0 16px 32px rgba(35, 51, 111, 0.14);
  --radius: 16px;
  --radius-sm: 10px;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-head: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --header-h: 72px;
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

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

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

.container{
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

a{ color: inherit; }

.skip-link{
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--navy);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 1000;
}
.skip-link:focus{
  left: 16px;
  top: 16px;
}

/* Focus visibility for accessibility */
a:focus-visible,
button:focus-visible{
  outline: 3px solid var(--red-soft);
  outline-offset: 2px;
}

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.brand{
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand-logos{
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-flag{
  height: 26px;
  width: auto;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(35,51,111,0.08);
}

.logo-shield{
  height: 34px;
  width: auto;
}

.brand-text{ line-height: 1.15; }

.main-nav{
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav ul{
  list-style: none;
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
}

.lang-switch{
  display: inline-flex;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  flex-shrink: 0;
}

.lang-btn{
  background: transparent;
  border: none;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.18s ease;
}

.lang-btn.is-active{
  background: var(--navy);
  color: var(--white);
}

.lang-switch-mobile{
  margin: 6px 4px 4px;
}

.main-nav a{
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--ink);
  position: relative;
  padding: 6px 0;
}

.main-nav a::after{
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.main-nav a:hover::after{ transform: scaleX(1); }

.menu-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.menu-toggle span{
  display: block;
  height: 2px;
  width: 22px;
  background: var(--navy);
  margin: 0 auto;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.mobile-nav{
  display: none;
  border-top: 1px solid var(--border);
  background: var(--white);
}
.mobile-nav.is-open{ display: block; }
.mobile-nav ul{
  list-style: none;
  margin: 0;
  padding: 8px 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mobile-nav a{
  display: block;
  padding: 12px 4px;
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}

/* ---------- Hero ---------- */
.hero{
  padding: 96px 0 84px;
  background:
    radial-gradient(1200px 400px at 15% -10%, rgba(155,26,31,0.06), transparent),
    linear-gradient(180deg, #f4f7fb 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.hero-inner{ max-width: 720px; }

.eyebrow{
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 700;
  margin-bottom: 18px;
}

.hero h1{
  font-family: var(--font-head);
  font-size: clamp(2rem, 4.5vw, 3rem);
  line-height: 1.15;
  color: var(--navy);
  margin: 0 0 18px;
}

.subtitle{
  font-size: 1.08rem;
  color: var(--ink-soft);
  margin: 0 0 32px;
}

.btn{
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
}
.btn-primary{
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(35,51,111,0.25);
}
.btn-primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(35,51,111,0.32);
  background: var(--navy-soft);
}
.btn-outline{
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover{
  background: var(--navy);
  color: var(--white);
  transform: translateY(-2px);
}

/* ---------- Section heading ---------- */
.events-section{ padding: 88px 0 96px; }

.section-heading{
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
}
.section-heading h2{
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  color: var(--navy);
  margin: 0 0 10px;
}
.section-sub{
  color: var(--ink-soft);
  margin: 0;
}

.frequency-note{
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 16px;
  margin: 16px auto 0;
}

/* ---------- Controls (filters + view toggle) ---------- */
.controls-row{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 40px;
}

.filters{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn{
  background: var(--white);
  border: 1.5px solid var(--border);
  color: var(--ink);
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s ease;
}
.filter-btn:hover{
  border-color: var(--navy);
  color: var(--navy);
}
.filter-btn.is-active{
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

/* ---------- Event cards ---------- */
.events-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 900px){
  .events-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px){
  .events-grid{ grid-template-columns: 1fr; }
}

.event-card{
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.event-card:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.event-card.is-highlighted{
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(155,26,31,0.18), var(--shadow-hover);
}

.card-top{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.badge{
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  background: #eef2f8;
  color: var(--navy);
}
.badge.badge-Education{ background: #e8f0ff; color: #1d4ed8; }
.badge.badge-Workshop{ background: #eef7ee; color: #1a7a3c; }
.badge.badge-Competition{ background: #fdeaec; color: var(--red); }
.badge.badge-Community{ background: #fff4e5; color: #b25e09; }

.share-btn{
  background: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ink-soft);
  transition: all 0.18s ease;
  flex-shrink: 0;
}
.share-btn:hover{
  border-color: var(--navy);
  color: var(--navy);
}
.share-btn svg{ width: 15px; height: 15px; }

.event-title{
  font-family: var(--font-head);
  font-size: 1.2rem;
  color: var(--navy);
  margin: 0;
  line-height: 1.3;
}

.event-meta{
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.event-meta li{
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 9px;
}

.event-meta svg{
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--red);
}

.event-meta ul{ margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }

.event-desc{
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0;
  flex-grow: 1;
}

.prize-badge{
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--red);
  background: #fdeaec;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  width: fit-content;
}

.card-actions{
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.card-actions .btn{
  flex: 1;
  padding: 11px 14px;
  font-size: 0.86rem;
  text-align: center;
}

.btn-secondary{
  background: var(--white);
  color: var(--navy);
  border-color: var(--navy);
}
.btn-secondary:hover{
  background: var(--navy);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-play{
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
  width: 100%;
  text-align: center;
  padding: 11px 14px;
  font-size: 0.86rem;
  box-shadow: 0 8px 18px rgba(155,26,31,0.25);
}
.btn-play:hover{
  background: var(--red-soft);
  border-color: var(--red-soft);
  transform: translateY(-2px);
  box-shadow: 0 12px 22px rgba(155,26,31,0.32);
}

.empty-state{
  text-align: center;
  color: var(--ink-soft);
  padding: 40px 0;
}

/* ---------- Never miss an event ---------- */
.never-miss{
  background: var(--navy);
  color: var(--white);
  padding: 80px 0;
  text-align: center;
}
.never-miss-inner{ max-width: 560px; }
.never-miss h2{
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 14px;
}
.never-miss p{
  color: rgba(255,255,255,0.82);
  margin: 0 0 30px;
}
.never-miss .btn-outline{
  border-color: var(--white);
  color: var(--white);
}
.never-miss .btn-outline:hover{
  background: var(--white);
  color: var(--navy);
}

/* ---------- Footer ---------- */
.site-footer{
  background: #f4f6fa;
  border-top: 1px solid var(--border);
  padding: 44px 0 28px;
}
.footer-inner{
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.9rem;
}
.footer-name{
  font-family: var(--font-head);
  color: var(--navy);
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 0 6px;
}
.footer-info p{ margin: 0 0 4px; }
.footer-tagline{
  margin: 18px 0 14px;
  letter-spacing: 0.02em;
}
.footer-copy{
  margin: 0;
  font-size: 0.8rem;
  color: #8a93a6;
}

/* ---------- Toast ---------- */
.toast{
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 16px);
  background: var(--navy);
  color: var(--white);
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: 0 12px 28px rgba(35,51,111,0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 1000;
}
.toast.is-visible{
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- Mobile ---------- */
@media (max-width: 880px){
  .main-nav{ display: none; }
  .menu-toggle{ display: flex; }
  .hero{ padding: 72px 0 56px; }
  .events-section{ padding: 64px 0 72px; }
  .controls-row{ flex-direction: column; align-items: stretch; }
  .filters{ justify-content: center; }
  .view-toggle{ align-self: center; }
  .card-actions{ flex-direction: column; }
}

@media (max-width: 420px){
  .brand{ font-size: 0.98rem; gap: 8px; }
  .logo-flag{ display: none; } /* keep the header tidy on very small phones */
  .logo-shield{ height: 30px; }
}