/* ═══════════════════════════════════════════════════════
   VETCLIN LIMS — Global Stylesheet
═══════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --green:     #059669;
  --green-d:   #047857;
  --green-dd:  #064E3B;
  --green-l:   #ECFDF5;
  --green-m:   #A7F3D0;
  --green-glow:rgba(5,150,105,.15);
  --slate-900: #0F172A;
  --slate-800: #1E293B;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50:  #F8FAFC;
  --white:     #FFFFFF;
  --err:       #DC2626;
  --err-l:     #FEF2F2;
  --warn:      #D97706;
  --warn-l:    #FFFBEB;
  --ok:        #16A34A;
  --ok-l:      #F0FDF4;
  --blue:      #2563EB;
  --sidebar-w: 240px;
  --topbar-h:  60px;
  --radius:    12px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08),0 2px 8px rgba(0,0,0,.05);
  --shadow-md: 0 4px 20px rgba(0,0,0,.09),0 1px 4px rgba(0,0,0,.05);
}

html { scroll-behavior: smooth; }
body { font-family: 'Plus Jakarta Sans', sans-serif; background: var(--slate-100); color: var(--slate-900); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--slate-300); border-radius: 10px; }

/* ═══════════════════════════════════
   LAYOUT
═══════════════════════════════════ */
.app-layout { display: flex; min-height: 100vh; }

/* ── Sidebar ─────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--slate-900);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; bottom: 0;
  z-index: 100; overflow-y: auto;
}

.sidebar-logo {
  padding: 22px 20px 18px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  display: flex; align-items: center; gap: 10px;
}

.sidebar-logo .logo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--green); display: flex; align-items: center;
  justify-content: center; font-size: 16px; flex-shrink: 0;
}

.sidebar-logo .logo-text { font-size: 15px; font-weight: 800; color: #fff; letter-spacing: -.5px; line-height: 1.1; }
.sidebar-logo .logo-sub  { font-size: 10px; color: rgba(255,255,255,.4); font-weight: 400; }

.sidebar-nav { padding: 12px 10px; flex: 1; }
.nav-section-title { font-size: 9.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: rgba(255,255,255,.3); padding: 10px 10px 6px; }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 9px; margin-bottom: 2px;
  font-size: .85rem; font-weight: 500; color: rgba(255,255,255,.6);
  transition: background .15s, color .15s;
}
.nav-item:hover  { background: rgba(255,255,255,.07); color: #fff; }
.nav-item.active { background: var(--green); color: #fff; font-weight: 600; }
.nav-item i { width: 16px; text-align: center; font-size: .82rem; }
.nav-item .badge { margin-left: auto; background: rgba(255,255,255,.15); border-radius: 100px; padding: 1px 7px; font-size: .7rem; font-weight: 700; }
.nav-item.active .badge { background: rgba(255,255,255,.25); }

.sidebar-footer {
  padding: 14px 20px;
  border-top: 1px solid rgba(255,255,255,.07);
  font-size: .78rem; color: rgba(255,255,255,.35);
}

/* ── Topbar ──────────────────────────────────────────── */
.topbar {
  position: fixed; top: 0; left: var(--sidebar-w); right: 0;
  height: var(--topbar-h); z-index: 90;
  background: var(--white);
  border-bottom: 1px solid var(--slate-200);
  display: flex; align-items: center; padding: 0 24px;
  gap: 16px; box-shadow: var(--shadow-sm);
}

.topbar-title { font-size: 1rem; font-weight: 700; flex: 1; }
.topbar-title span { color: var(--slate-400); font-weight: 400; margin-left: 6px; font-size: .85rem; }

.topbar-user {
  display: flex; align-items: center; gap: 10px;
  font-size: .85rem;
}
.topbar-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--green-l); border: 2px solid var(--green-m);
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 800; color: var(--green-d);
}
.topbar-name { font-weight: 600; color: var(--slate-700); }
.topbar-role { font-size: .72rem; color: var(--slate-400); }

.btn-logout {
  background: none; border: 1px solid var(--slate-200);
  border-radius: 8px; padding: 7px 12px;
  font-size: .78rem; font-weight: 600; color: var(--slate-500);
  transition: all .15s;
}
.btn-logout:hover { border-color: var(--err); color: var(--err); background: var(--err-l); }

/* ── Main content ────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  margin-top: var(--topbar-h);
  padding: 28px 28px 48px;
  min-height: calc(100vh - var(--topbar-h));
  flex: 1;
}

/* ═══════════════════════════════════
   LOGIN PAGE
═══════════════════════════════════ */
.login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--slate-900) 0%, var(--green-dd) 100%);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}

.login-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 44px; width: 100%; max-width: 400px;
  box-shadow: 0 24px 80px rgba(0,0,0,.35);
}

.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo .mark { width: 56px; height: 56px; background: var(--green); border-radius: 16px; margin: 0 auto 12px; display: flex; align-items: center; justify-content: center; font-size: 24px; color: #fff; box-shadow: 0 8px 24px var(--green-glow); }
.login-logo h1 { font-size: 1.5rem; font-weight: 800; letter-spacing: -.5px; }
.login-logo p  { font-size: .83rem; color: var(--slate-400); margin-top: 4px; }

/* ═══════════════════════════════════
   COMPONENTS
═══════════════════════════════════ */

/* Cards */
.card {
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200); box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.card-header { padding: 18px 22px; border-bottom: 1px solid var(--slate-200); display: flex; align-items: center; gap: 10px; }
.card-header h2 { font-size: .95rem; font-weight: 700; flex: 1; }
.card-body   { padding: 22px; }
.card-footer { padding: 14px 22px; border-top: 1px solid var(--slate-200); background: var(--slate-50); display: flex; align-items: center; justify-content: flex-end; gap: 10px; }

/* Stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--white); border-radius: var(--radius);
  border: 1px solid var(--slate-200); padding: 20px;
  box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
  transition: box-shadow .2s, transform .2s;
}
.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.stat-card .icon { width: 42px; height: 42px; border-radius: 11px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; font-size: 1.1rem; }
.stat-card .value { font-size: 1.75rem; font-weight: 800; line-height: 1; letter-spacing: -1px; }
.stat-card .label { font-size: .78rem; color: var(--slate-400); font-weight: 500; margin-top: 5px; }
.stat-card .trend { font-size: .75rem; font-weight: 600; margin-top: 10px; display: flex; align-items: center; gap: 4px; }

/* Color variants for stat icons */
.icon-green  { background: var(--green-l);  color: var(--green-d); }
.icon-blue   { background: #EFF6FF;          color: #1D4ED8; }
.icon-orange { background: #FFF7ED;          color: #C2410C; }
.icon-purple { background: #F5F3FF;          color: #6D28D9; }
.icon-teal   { background: #F0FDFA;          color: #0F766E; }
.icon-red    { background: var(--err-l);     color: var(--err); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 18px; border-radius: 9px; border: none;
  font-size: .85rem; font-weight: 600; letter-spacing: .1px;
  transition: all .15s; white-space: nowrap;
}
.btn-primary  { background: var(--green);    color: #fff;             box-shadow: 0 3px 12px var(--green-glow); }
.btn-primary:hover  { background: var(--green-d); transform: translateY(-1px); }
.btn-secondary{ background: var(--slate-100); color: var(--slate-700); border: 1px solid var(--slate-200); }
.btn-secondary:hover{ background: var(--slate-200); }
.btn-danger   { background: var(--err-l);    color: var(--err);       border: 1px solid rgba(220,38,38,.2); }
.btn-danger:hover   { background: var(--err); color: #fff; }
.btn-ghost    { background: transparent;     color: var(--slate-500);  padding: 7px 10px; }
.btn-ghost:hover    { background: var(--slate-100); color: var(--slate-700); }
.btn-sm { padding: 6px 12px; font-size: .78rem; }
.btn-wpp { background: #25D366; color: #fff; }
.btn-wpp:hover { background: #1aaf54; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }

/* Form fields */
.form-grid { display: grid; gap: 16px; }
.form-grid.g2 { grid-template-columns: 1fr 1fr; }
.form-grid.g3 { grid-template-columns: 1fr 1fr 1fr; }
.form-full { grid-column: 1 / -1; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .73rem; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--slate-500); }
.field label .req { color: var(--err); }

.field input, .field select, .field textarea {
  padding: 10px 13px; border: 1.5px solid var(--slate-200);
  border-radius: 9px; font-size: .89rem; color: var(--slate-900);
  background: var(--slate-50); transition: border-color .18s, box-shadow .18s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--green); background: var(--white);
  box-shadow: 0 0 0 3px var(--green-glow);
}
.field input::placeholder, .field textarea::placeholder { color: var(--slate-300); }
.field textarea { resize: vertical; min-height: 90px; line-height: 1.55; }
.field select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%2394A3B8' d='M8 10.5l-4-4h8z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 14px; padding-right: 32px; }

.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--err); box-shadow: 0 0 0 3px rgba(220,38,38,.1); }
.field-error { font-size: .73rem; color: var(--err); font-weight: 600; display: flex; align-items: center; gap: 4px; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead th { padding: 11px 14px; text-align: left; font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--slate-500); background: var(--slate-50); border-bottom: 1px solid var(--slate-200); white-space: nowrap; }
tbody td { padding: 12px 14px; border-bottom: 1px solid var(--slate-100); color: var(--slate-700); }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--slate-50); }

/* Badges / Status */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 100px; font-size: .72rem; font-weight: 700; letter-spacing: .2px; white-space: nowrap; }
.badge-pending    { background: var(--warn-l);   color: #92400E; }
.badge-analysis   { background: #EFF6FF;          color: #1E40AF; }
.badge-completed  { background: var(--ok-l);      color: var(--ok); }
.badge-closed     { background: #DBEAFE;           color: #1D4ED8; }
.badge-cancelled  { background: var(--slate-100); color: var(--slate-500); }
.badge-sent       { background: var(--ok-l);      color: var(--ok); }
.badge-error      { background: var(--err-l);     color: var(--err); }
.badge-paid       { background: var(--ok-l);      color: var(--ok); }
.badge-overdue    { background: var(--err-l);     color: var(--err); }
.badge-admin      { background: #EDE9FE;           color: #5B21B6; }

/* Search bar */
.search-bar {
  display: flex; align-items: center; gap: 8px;
  background: var(--slate-50); border: 1.5px solid var(--slate-200);
  border-radius: 9px; padding: 9px 14px;
  transition: border-color .18s, box-shadow .18s;
}
.search-bar:focus-within { border-color: var(--green); box-shadow: 0 0 0 3px var(--green-glow); background: var(--white); }
.search-bar i { color: var(--slate-400); font-size: .85rem; }
.search-bar input { border: none; background: none; outline: none; font-size: .88rem; color: var(--slate-900); width: 100%; font-family: inherit; }
.search-bar input::placeholder { color: var(--slate-300); }

/* Page header */
.page-header { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.page-header h1 { font-size: 1.5rem; font-weight: 800; letter-spacing: -.5px; }
.page-header p  { font-size: .85rem; color: var(--slate-400); margin-top: 3px; }

/* Toolbar */
.toolbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.toolbar .search-wrap { flex: 1; min-width: 220px; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15,23,42,.55);
  backdrop-filter: blur(3px); z-index: 500;
  display: flex; align-items: center; justify-content: center; padding: 16px;
  opacity: 0; pointer-events: none; transition: opacity .2s;
}
.modal-backdrop.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--white); border-radius: var(--radius-lg);
  width: 100%; box-shadow: 0 24px 80px rgba(0,0,0,.25);
  transform: translateY(20px) scale(.97); transition: transform .25s cubic-bezier(.34,1.56,.64,1);
  max-height: calc(100vh - 40px); overflow-y: auto;
}
.modal-backdrop.open .modal { transform: translateY(0) scale(1); }
.modal-sm  { max-width: 440px; }
.modal-md  { max-width: 620px; }
.modal-lg  { max-width: 820px; }
.modal-xl  { max-width: 1060px; }

.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--slate-200); }
.modal-header h3 { font-size: 1rem; font-weight: 700; }
.modal-close { background: var(--slate-100); border: none; width: 30px; height: 30px; border-radius: 8px; font-size: .9rem; color: var(--slate-500); display: flex; align-items: center; justify-content: center; transition: background .15s; }
.modal-close:hover { background: var(--slate-200); }
.modal-body   { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--slate-200); display: flex; justify-content: flex-end; gap: 10px; }

/* Exam selector (chips) */
.exam-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; max-height: 300px; overflow-y: auto; }
.exam-chip { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border: 1.5px solid var(--slate-200); border-radius: 9px; cursor: pointer; transition: all .15s; }
.exam-chip:hover { border-color: var(--green); background: var(--green-l); }
.exam-chip.selected { border-color: var(--green); background: var(--green-l); }
.exam-chip input { display: none; }
.exam-chip .ec-name { font-size: .82rem; font-weight: 600; color: var(--slate-700); }
.exam-chip .ec-cat  { font-size: .7rem;  color: var(--slate-400); }
.exam-chip .ec-price{ font-size: .78rem; font-weight: 700; color: var(--green); margin-left: auto; }
.exam-chip.selected .ec-name { color: var(--green-d); }

/* Notification / Toast */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 18px; border-radius: 10px; font-size: .85rem; font-weight: 600;
  box-shadow: var(--shadow-md); min-width: 260px; max-width: 380px;
  animation: toast-in .3s cubic-bezier(.34,1.56,.64,1) both;
}
.toast-ok   { background: var(--ok);  color: #fff; }
.toast-err  { background: var(--err); color: #fff; }
.toast-info { background: var(--slate-800); color: #fff; }
.toast-warn { background: var(--warn); color: #fff; }
@keyframes toast-in {
  from { opacity: 0; transform: translateX(24px) scale(.9); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

/* Empty state */
.empty { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 60px 24px; color: var(--slate-400); gap: 10px; }
.empty i { font-size: 2.5rem; opacity: .4; }
.empty p { font-size: .88rem; }

/* Loading */
.spinner { display: inline-block; width: 18px; height: 18px; border: 2.5px solid rgba(255,255,255,.35); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Results flag colors */
.flag-HIGH   { color: var(--err);  font-weight: 700; }
.flag-LOW    { color: var(--blue); font-weight: 700; }
.flag-NORMAL { color: var(--ok);   font-weight: 600; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; }
  .topbar { left: 0; }
  .form-grid.g2, .form-grid.g3 { grid-template-columns: 1fr; }
  .form-full { grid-column: 1; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
}