:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-muted: #eef2ff;
  --text: #152238;
  --muted: #6b7280;
  --border: #e2e8f0;
  --accent: #14b8a6;
  --accent-dark: #0f766e;
  --purple: #7c3aed;
  --purple-soft: #ede9fe;
  --shadow: 0 18px 50px rgba(30, 41, 59, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(20, 184, 166, .13), transparent 27%),
    radial-gradient(circle at 0 35%, rgba(124, 58, 237, .08), transparent 26%),
    var(--bg);
  color: var(--text);
}
button, input, select { font: inherit; }
button { cursor: pointer; }

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 72px;
}

.hero {
  min-height: 300px;
  padding: 48px;
  border-radius: 32px;
  background: linear-gradient(135deg, #0f172a 0%, #163d4b 56%, #4c1d95 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.hero::after {
  content: "";
  position: absolute;
  width: 330px;
  height: 330px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 50%;
  right: -90px;
  bottom: -160px;
}
.eyebrow {
  margin: 0 0 10px;
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent-dark);
}
.hero .eyebrow { color: #5eead4; }
.hero h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: .95;
  letter-spacing: -.055em;
}
.subtitle {
  max-width: 700px;
  margin: 22px 0 0;
  color: #dbeafe;
  font-size: 1.05rem;
  line-height: 1.7;
}
.hero-badge {
  width: 132px;
  aspect-ratio: 1;
  border-radius: 34px;
  display: grid;
  place-items: center;
  font-size: 4rem;
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(10px);
  flex: 0 0 auto;
  transform: rotate(4deg);
  position: relative;
  z-index: 1;
}

.controls {
  margin: 28px 0 12px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 12px;
}
.search-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(15,23,42,.04);
}
.search-box input {
  border: 0;
  outline: 0;
  padding: 12px 14px;
  min-width: 0;
  background: transparent;
  color: var(--text);
}
.search-box button,
.secondary-button,
.ghost-button,
.region-select {
  border: 0;
  border-radius: 12px;
  padding: 13px 18px;
  font-weight: 700;
}
.search-box button { background: var(--accent); color: #062c2a; }
.search-box button:hover { background: #2dd4bf; }
.secondary-button { background: #312e81; color: #fff; }
.secondary-button:hover { background: #4338ca; }
.ghost-button { background: var(--surface-muted); color: var(--text); }
.region-select {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
  outline: 0;
}
.status {
  min-height: 24px;
  color: var(--muted);
  margin: 8px 0 26px;
}
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -.035em;
}

.country-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.country-card {
  min-height: 330px;
  padding: 18px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(15,23,42,.05);
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  cursor: pointer;
  outline: 0;
}
.country-card:hover,
.country-card:focus-visible {
  transform: translateY(-5px);
  box-shadow: 0 18px 42px rgba(15,23,42,.11);
  border-color: rgba(20,184,166,.45);
}
.card-topline {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: .9rem;
  font-weight: 800;
}
.card-arrow { font-size: 1.1rem; color: var(--purple); }
.flag-wrap {
  height: 170px;
  margin: 18px 0 16px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  padding: 20px;
  background: linear-gradient(145deg, #f8fafc, var(--purple-soft));
}
.country-flag {
  display: block;
  width: 100%;
  max-width: 190px;
  max-height: 125px;
  object-fit: contain;
  filter: drop-shadow(0 10px 14px rgba(15,23,42,.14));
}
.country-name {
  margin: 0 0 7px;
  font-size: 1.23rem;
  letter-spacing: -.02em;
}
.country-capital { margin: 0 0 14px; color: var(--muted); font-size: .9rem; }
.country-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.region-pill,
.population {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 800;
}
.region-pill { background: #ccfbf1; color: #115e59; text-transform: uppercase; }
.population { background: var(--purple-soft); color: #5b21b6; }

.country-dialog {
  width: min(760px, calc(100% - 24px));
  border: 0;
  border-radius: 28px;
  padding: 0;
  box-shadow: 0 30px 90px rgba(0,0,0,.3);
  overflow: hidden;
}
.country-dialog::backdrop { background: rgba(15,23,42,.68); backdrop-filter: blur(6px); }
.close-button {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 4;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 0;
  background: rgba(255,255,255,.92);
  font-size: 1.5rem;
  box-shadow: 0 4px 16px rgba(0,0,0,.08);
}
.detail-shell { padding: 34px; background: #fff; }
.detail-hero {
  border-radius: 22px;
  padding: 28px;
  background: linear-gradient(135deg, #ecfeff, #ede9fe);
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 28px;
  align-items: center;
}
.detail-flag-wrap {
  min-height: 180px;
  display: grid;
  place-items: center;
}
.detail-flag { width: 100%; max-width: 220px; max-height: 150px; object-fit: contain; filter: drop-shadow(0 12px 18px rgba(15,23,42,.16)); }
.detail-code { color: var(--accent-dark); font-weight: 800; margin-bottom: 8px; }
.detail-name { margin: 0; font-size: clamp(2rem, 6vw, 2.7rem); letter-spacing: -.045em; }
.detail-official { margin: 8px 0 0; color: var(--muted); line-height: 1.5; }
.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}
.detail-item { padding: 16px; border: 1px solid var(--border); border-radius: 16px; background: #fafbff; }
.detail-label { display: block; color: var(--muted); font-size: .78rem; font-weight: 700; margin-bottom: 6px; text-transform: uppercase; letter-spacing: .04em; }
.detail-value { font-weight: 750; line-height: 1.45; }
.map-link {
  display: inline-flex;
  margin-top: 20px;
  padding: 12px 16px;
  border-radius: 12px;
  background: #312e81;
  color: #fff;
  text-decoration: none;
  font-weight: 800;
}

@media (max-width: 960px) {
  .country-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .controls { grid-template-columns: 1fr 1fr; }
  .search-box { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .page-shell { width: min(100% - 20px, 1180px); padding-top: 10px; }
  .hero { min-height: 0; padding: 32px 24px; border-radius: 24px; }
  .hero-badge { display: none; }
  .controls { grid-template-columns: 1fr; }
  .search-box { grid-template-columns: 1fr; }
  .country-grid { grid-template-columns: 1fr; }
  .country-card { min-height: 0; }
  .section-heading { align-items: center; }
  .detail-shell { padding: 20px; }
  .detail-hero { grid-template-columns: 1fr; text-align: center; padding: 24px 18px; }
  .detail-grid { grid-template-columns: 1fr; }
}

/* Modale compatible sans dépendre de <dialog> */
.country-modal[hidden] { display: none; }
.country-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(10, 18, 35, .72);
  backdrop-filter: blur(7px);
}
.country-modal-panel {
  position: relative;
  width: min(760px, 100%);
  max-height: min(86vh, 820px);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 26px;
  background: var(--surface);
  box-shadow: 0 28px 80px rgba(3, 7, 18, .35);
}
body.modal-open { overflow: hidden; }
.country-flag-emoji {
  display: grid;
  place-items: center;
  min-height: 120px;
  font-size: clamp(4rem, 10vw, 7rem);
  line-height: 1;
  filter: drop-shadow(0 8px 15px rgba(15,23,42,.16));
}
.detail-flag-emoji {
  font-size: clamp(4.5rem, 12vw, 8rem);
  line-height: 1;
  filter: drop-shadow(0 8px 18px rgba(15,23,42,.18));
}
.detail-wide { grid-column: 1 / -1; }
.empty-state { grid-column: 1 / -1; }