/* ============================================================
   ADEKID SCHOOLS — DESIGN SYSTEM
   Shared CSS custom properties, typography, utilities
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;900&family=DM+Sans:wght@300;400;500;600&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Brand Palette */
  --green-deep:   #0D4A2F;
  --green-mid:    #1A6B42;
  --green-bright: #2E8B57;
  --green-dark:   #091f13;
  --green-darker: #060f0a;
  --gold:         #F5C518;
  --amber:        #E8A500;
  --white:        #FFFFFF;
  --red-alert:    #ef4444;
  --green-ok:     #22c55e;
  --blue-info:    #3b82f6;
  --orange-warn:  #f97316;

  /* Glass */
  --glass-bg:        rgba(255,255,255,0.07);
  --glass-border:    rgba(255,255,255,0.15);
  --glass-bg-strong: rgba(255,255,255,0.10);

  /* Typography */
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'DM Sans', system-ui, sans-serif;

  /* Spacing scale */
  --sp-xs: 0.25rem;
  --sp-sm: 0.5rem;
  --sp-md: 1rem;
  --sp-lg: 1.5rem;
  --sp-xl: 2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4rem;

  /* Radius */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 20px;
  --r-pill: 50px;
  --r-circle: 50%;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.15);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.2);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.3);
  --shadow-gold: 0 0 20px rgba(245,197,24,0.4);
  --shadow-gold-lg: 0 12px 30px rgba(245,197,24,0.5);

  /* Transitions */
  --t-fast: 0.15s ease;
  --t-base: 0.3s ease;
  --t-slow: 0.5s ease;
  --t-bounce: 0.4s cubic-bezier(0.34,1.56,0.64,1);
}

/* ── Body & Base ─────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--green-deep);
  color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: var(--t-base); }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: var(--font-sans); }
input, select, textarea { font-family: var(--font-sans); }

/* ── Typography ──────────────────────────────────────────── */
.font-serif { font-family: var(--font-serif); }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-serif); font-weight: 700; line-height: 1.2; }

.text-gold     { color: var(--gold); }
.text-dim      { color: rgba(255,255,255,0.6); }
.text-muted    { color: rgba(255,255,255,0.4); }
.text-white    { color: var(--white); }
.text-center   { text-align: center; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0.75rem 1.75rem; border-radius: var(--r-pill);
  font-weight: 600; font-size: 0.9rem; border: none;
  cursor: pointer; transition: var(--t-bounce);
  font-family: var(--font-sans); white-space: nowrap;
}

.btn-gold {
  background: var(--gold); color: var(--green-deep);
}
.btn-gold:hover {
  background: #fff; transform: translateY(-2px);
  box-shadow: var(--shadow-gold-lg);
}

.btn-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
  border-color: var(--gold); color: var(--gold);
  transform: translateY(-2px);
}

.btn-glass {
  background: var(--glass-bg); color: var(--white);
  border: 1px solid var(--glass-border);
}
.btn-glass:hover { background: var(--glass-bg-strong); }

.btn-danger {
  background: rgba(239,68,68,0.15); color: #fca5a5;
  border: 1px solid rgba(239,68,68,0.3);
}
.btn-danger:hover { background: rgba(239,68,68,0.25); }

.btn-success {
  background: rgba(34,197,94,0.15); color: #86efac;
  border: 1px solid rgba(34,197,94,0.3);
}
.btn-success:hover { background: rgba(34,197,94,0.25); }

.btn-sm { padding: 0.45rem 1rem; font-size: 0.8rem; }
.btn-lg { padding: 1rem 2.25rem; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ── Form Elements ───────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block; font-size: 0.8rem; font-weight: 600;
  color: rgba(255,255,255,0.7); margin-bottom: 0.4rem;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--r-sm);
  padding: 0.75rem 1rem;
  color: var(--white);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  outline: none;
  transition: all var(--t-fast);
  appearance: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: rgba(255,255,255,0.3); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--gold);
  background: rgba(255,255,255,0.10);
  box-shadow: 0 0 0 3px rgba(245,197,24,0.15);
}
.form-select option { background: var(--green-deep); color: var(--white); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.form-error { font-size: 0.75rem; color: #fca5a5; margin-top: 0.3rem; }
.form-hint  { font-size: 0.75rem; color: rgba(255,255,255,0.4); margin-top: 0.3rem; }

/* ── Cards & Glass ───────────────────────────────────────── */
.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  padding: var(--sp-xl);
  backdrop-filter: blur(10px);
}

.card-sm { padding: var(--sp-lg); border-radius: var(--r-lg); }
.card-hover { transition: var(--t-bounce); cursor: pointer; }
.card-hover:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: var(--shadow-md);
}

/* ── Badges & Pills ──────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 0.25rem 0.65rem; border-radius: var(--r-pill);
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.03em;
}
.badge-gold    { background: rgba(245,197,24,0.2); color: var(--gold); }
.badge-green   { background: rgba(34,197,94,0.15); color: #86efac; }
.badge-red     { background: rgba(239,68,68,0.15); color: #fca5a5; }
.badge-blue    { background: rgba(59,130,246,0.15); color: #93c5fd; }
.badge-orange  { background: rgba(249,115,22,0.15); color: #fdba74; }
.badge-gray    { background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.5); }

/* Grade badges */
.grade-badge { display: inline-block; padding: 0.2rem 0.6rem; border-radius: var(--r-pill); font-size: 0.7rem; font-weight: 700; }
.grade-A  { background: rgba(34,197,94,0.2);  color: #86efac; }
.grade-B  { background: rgba(245,197,24,0.2); color: var(--gold); }
.grade-C  { background: rgba(249,115,22,0.2); color: #fdba74; }
.grade-D  { background: rgba(239,68,68,0.2);  color: #fca5a5; }
.grade-F  { background: rgba(239,68,68,0.3);  color: #f87171; }

/* ── Section Labels ──────────────────────────────────────── */
.section-label {
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem,3vw,2.8rem);
  font-weight: 900; line-height: 1.2; margin-bottom: 1rem;
}
.section-desc {
  font-size: 1rem; color: rgba(255,255,255,0.7);
  line-height: 1.7; max-width: 600px;
}

/* ── Tables ──────────────────────────────────────────────── */
.data-table {
  width: 100%; border-collapse: collapse;
  font-size: 0.85rem;
}
.data-table th {
  padding: 0.75rem 1rem;
  background: rgba(0,0,0,0.25);
  color: rgba(255,255,255,0.6);
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  text-align: left; white-space: nowrap;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  vertical-align: middle;
}
.data-table tr:hover td { background: rgba(255,255,255,0.03); }
.data-table tr:last-child td { border-bottom: none; }

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 500;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #0f3d26; border: 1px solid var(--glass-border);
  border-radius: var(--r-xl); padding: 2rem;
  width: 100%; max-width: 560px;
  max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.3s var(--t-bounce);
}
.modal-lg { max-width: 750px; }
@keyframes modalIn {
  from { opacity:0; transform: scale(0.9) translateY(20px); }
  to   { opacity:1; transform: scale(1) translateY(0); }
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.5rem;
}
.modal-title { font-family: var(--font-serif); font-size: 1.3rem; font-weight: 700; }
.modal-close {
  width: 32px; height: 32px; border-radius: var(--r-circle);
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: var(--white); font-size: 1.1rem; display: flex;
  align-items: center; justify-content: center;
  cursor: pointer; transition: var(--t-fast);
}
.modal-close:hover { background: rgba(239,68,68,0.2); color: #fca5a5; }

/* ── Toast ───────────────────────────────────────────────── */
#toast-container {
  position: fixed; top: 1rem; right: 1rem; z-index: 9999;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.toast {
  background: #0f3d26; border: 1px solid var(--glass-border);
  border-radius: var(--r-md); padding: 0.85rem 1.25rem;
  font-size: 0.85rem; font-weight: 500;
  box-shadow: var(--shadow-md); min-width: 240px;
  display: flex; align-items: center; gap: 10px;
  animation: toastIn 0.3s ease;
}
.toast-success { border-left: 3px solid var(--green-ok); }
.toast-error   { border-left: 3px solid var(--red-alert); }
.toast-info    { border-left: 3px solid var(--blue-info); }
@keyframes toastIn { from { opacity:0; transform: translateX(40px); } to { opacity:1; transform: translateX(0); } }

/* ── Stat Cards ──────────────────────────────────────────── */
.stat-card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--r-lg); padding: 1.25rem;
}
.stat-card-icon {
  width: 44px; height: 44px; border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 1rem;
}
.stat-card-value {
  font-family: var(--font-serif); font-size: 2rem;
  font-weight: 900; color: var(--gold); line-height: 1;
}
.stat-card-label {
  font-size: 0.7rem; color: rgba(255,255,255,0.5);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-top: 4px;
}
.stat-card-sub { font-size: 0.72rem; color: rgba(255,255,255,0.4); margin-top: 6px; }
.stat-card-up   { color: #86efac; }
.stat-card-down { color: #fca5a5; }

/* ── Avatar ──────────────────────────────────────────────── */
.avatar {
  width: 36px; height: 36px; border-radius: var(--r-circle);
  background: var(--green-mid); display: flex;
  align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem; flex-shrink: 0;
  overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-lg { width: 64px; height: 64px; font-size: 1.2rem; }
.avatar-xl { width: 96px; height: 96px; font-size: 1.8rem; }

/* ── Scroll animations ───────────────────────────────────── */
.fade-up {
  opacity: 0; transform: translateY(40px);
  transition: all 0.7s cubic-bezier(0.34,1.56,0.64,1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ── Utilities ───────────────────────────────────────────── */
.flex         { display: flex; }
.flex-col     { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-sm { gap: 0.5rem; }
.gap-md { gap: 1rem; }
.gap-lg { gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }
.w-full { width: 100%; }
.mt-sm  { margin-top: 0.5rem; }
.mt-md  { margin-top: 1rem; }
.mt-lg  { margin-top: 1.5rem; }
.mt-xl  { margin-top: 2rem; }
.mb-md  { margin-bottom: 1rem; }
.mb-lg  { margin-bottom: 1.5rem; }
.mb-xl  { margin-bottom: 2rem; }
.p-md   { padding: 1rem; }
.p-lg   { padding: 1.5rem; }
.hidden { display: none; }
.relative { position: relative; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Loading Spinner ─────────────────────────────────────── */
.spinner {
  width: 32px; height: 32px; border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--gold);
  animation: spin 0.8s linear infinite;
  margin: 2rem auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  position: fixed; inset: 0; z-index: 9998;
  background: rgba(13,74,47,0.85); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 1rem;
}
.loading-overlay.hidden { display: none; }
.loading-text { font-size: 0.85rem; color: rgba(255,255,255,0.6); }

/* ── Empty State ─────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 3rem 1rem;
  color: rgba(255,255,255,0.4);
}
.empty-state-icon { font-size: 3rem; margin-bottom: 1rem; }
.empty-state-title { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 700; color: rgba(255,255,255,0.6); margin-bottom: 0.5rem; }
.empty-state-desc  { font-size: 0.85rem; }

/* ── Tabs ────────────────────────────────────────────────── */
.tab-nav {
  display: flex; gap: 0.25rem;
  background: rgba(0,0,0,0.2); border-radius: var(--r-md);
  padding: 0.3rem; margin-bottom: 1.5rem;
}
.tab-btn {
  flex: 1; padding: 0.6rem 1rem;
  border-radius: var(--r-sm); font-size: 0.82rem; font-weight: 600;
  color: rgba(255,255,255,0.5); background: transparent; border: none;
  cursor: pointer; transition: var(--t-base); text-align: center;
}
.tab-btn.active {
  background: var(--gold); color: var(--green-deep);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Search bar ──────────────────────────────────────────── */
.search-bar {
  display: flex; align-items: center; gap: 0.75rem;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--r-md); padding: 0.6rem 1rem;
  transition: var(--t-fast);
}
.search-bar:focus-within { border-color: var(--gold); }
.search-bar input {
  background: none; border: none; color: var(--white);
  font-size: 0.9rem; outline: none; flex: 1;
}
.search-bar input::placeholder { color: rgba(255,255,255,0.35); }
.search-icon { color: rgba(255,255,255,0.4); font-size: 1rem; }

/* ── Pagination ──────────────────────────────────────────── */
.pagination {
  display: flex; align-items: center; gap: 0.4rem;
  justify-content: center; margin-top: 1.5rem;
}
.page-btn {
  width: 34px; height: 34px; border-radius: var(--r-sm);
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: var(--white); font-size: 0.82rem; display: flex;
  align-items: center; justify-content: center; cursor: pointer;
  transition: var(--t-fast);
}
.page-btn:hover, .page-btn.active { background: var(--gold); color: var(--green-deep); border-color: var(--gold); }

/* ── Divider ─────────────────────────────────────────────── */
.divider { height: 1px; background: var(--glass-border); margin: 1.25rem 0; }

/* ── Print hide ──────────────────────────────────────────── */
@media print { .no-print { display: none !important; } }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .modal { padding: 1.25rem; }
  .data-table { font-size: 0.78rem; }
  .data-table th, .data-table td { padding: 0.6rem 0.5rem; }
}

/* ── Skeleton pulse animation ────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}