:root {
  --nigerian-green: #008751;
  --nigerian-green-dark: #006b40;

  --bg: #f4f4f4;
  --card-bg: #ffffff;
  --text-dark: #1a1a1a;
  --text-gray: #666;
  --muted: #888;

  --border: #d0d0d0;
  --shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

/* 🌙 DARK MODE */
body.dark {
  --bg: #0f1412;
  --card-bg: #16211c;
  --text-dark: #e8f0ec;
  --text-gray: #a9b3ad;
  --muted: #7f8f86;

  --border: #30443b;
  --shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

/* BASE */
body {
  font-family: 'Inter', sans-serif;
  margin: 0;
  padding: clamp(12px, 2vw, 25px);
  background: var(--bg);
  color: var(--text-dark);
  line-height: 1.6;
  transition: background 0.25s ease, color 0.25s ease;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

/* ACCESSIBILITY */
:focus-visible {
  outline: 3px solid rgba(0, 135, 81, 0.4);
  outline-offset: 2px;
}

/* HEADER */
.header {
  margin-bottom: 25px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--nigerian-green);
}

h1 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  margin: 0;
}

.header p {
  margin: 6px 0 0;
  color: var(--text-gray);
}

/* FORM LAYOUT */
.search-container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 15px;
  align-items: flex-start;
}

/* INPUTS */
.search-input,
.state-filter,
.search-btn {
  padding: 12px;
  border-radius: 8px;
  font-size: 0.95rem;
}

/* SEARCH INPUT */
.search-input {
  flex: 1;
  min-width: 180px;
  border: 2px solid var(--border);
  background: var(--card-bg);
  color: var(--text-dark);
}

.search-input:focus {
  border-color: var(--nigerian-green);
  box-shadow: 0 0 0 3px rgba(0, 135, 81, 0.2);
  outline: none;
}

/* STATE SELECT */
.state-filter {
  border: 2px solid var(--border);
  background: var(--card-bg);
  color: var(--text-dark);
  cursor: pointer;
  min-width: 160px;
}

/* BUTTON */
.search-btn {
  background: var(--nigerian-green);
  color: white;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: 0.2s ease;
}

@media (hover: hover) {
  .search-btn:hover {
    background: var(--nigerian-green-dark);
    transform: translateY(-2px);
  }
}

/* FIELDSETS (RADIO + CHECKBOX GROUPS) */
fieldset {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-width: 200px;
}

legend {
  font-weight: 700;
  color: var(--nigerian-green);
  padding: 0 8px;
}

/* LABELS (RADIO + CHECKBOX UNIFIED) */
fieldset label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  background: var(--card-bg);
  border: 1px solid var(--border);
  transition: 0.2s ease;
}

fieldset label:hover {
  border-color: var(--nigerian-green);
  background: rgba(0, 135, 81, 0.05);
}

/* INPUTS (RADIO + CHECKBOX) */
input[type="radio"],
input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--nigerian-green);
  cursor: pointer;
}

/* GRID */
.school-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 25px;
}

/* SCHOOL CARD */
.school-card {
  background: var(--card-bg);
  border-left: 5px solid var(--nigerian-green);
  border-radius: 10px;
  padding: 18px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.school-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15);
}

.card-header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.school-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--nigerian-green);
  margin: 0;
}

.tag {
  background: rgba(0, 135, 81, 0.12);
  color: var(--nigerian-green);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
}

.location {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-gray);
}

.address {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 4px;
}

/* MOBILE */
@media (max-width: 600px) {
  .search-container {
    flex-direction: column;
  }

  .search-input,
  .state-filter,
  .search-btn,
  fieldset {
    width: 100%;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .school-card {
    padding: 14px;
  }
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}