/* ============================================================
   HearingAid Manager – app.css
   Design: clean clinical utility with warm slate tones
   ============================================================ */

:root {
  --c-bg:       #f5f6f8;
  --c-surface:  #ffffff;
  --c-border:   #e2e5ea;
  --c-text:     #1e2430;
  --c-muted:    #6b7280;
  --c-primary:  #1d5fa6;
  --c-primary-h:#174d8c;
  --c-success:  #15803d;
  --c-danger:   #b91c1c;
  --c-warn:     #b45309;
  --c-accent:   #0ea5e9;
  --radius:     8px;
  --shadow:     0 1px 4px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --font:       'DM Sans', system-ui, sans-serif;
  --font-mono:  'DM Mono', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- Navbar ---- */
.navbar {
  background: var(--c-primary);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0 1.5rem;
  height: 56px;
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
}
.navbar-brand {
  display: flex; align-items: center; gap: .5rem;
  font-weight: 600; font-size: 1rem; color: #fff;
  text-decoration: none; white-space: nowrap;
}
.nav-links {
  display: flex; list-style: none; gap: .25rem; flex: 1;
}
.nav-links a {
  color: rgba(255,255,255,.85); text-decoration: none;
  padding: .35rem .75rem; border-radius: 5px; font-size: .875rem;
  transition: background .15s, color .15s;
}
.nav-links a:hover, .nav-links a.active {
  background: rgba(255,255,255,.15); color: #fff;
}
.nav-user {
  display: flex; align-items: center; gap: .75rem;
  font-size: .85rem; color: rgba(255,255,255,.75);
}

/* ---- Main ---- */
.main-content { flex: 1; padding: 1.75rem 2rem; max-width: 1400px; margin: 0 auto; width: 100%; }

/* ---- Footer ---- */
.site-footer { text-align: center; padding: 1rem; color: var(--c-muted); font-size: .8rem; border-top: 1px solid var(--c-border); }

/* ---- Page header ---- */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.page-header h1 { font-size: 1.35rem; font-weight: 600; }

/* ---- Cards ---- */
.card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden;
}
.card-body { padding: 1.25rem 1.5rem; }
.card-title { font-size: .95rem; font-weight: 600; color: var(--c-muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: .25rem; }
.card-value { font-size: 2rem; font-weight: 700; line-height: 1.2; }

/* ---- Stat grid ---- */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.75rem; }
.stat-card { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 1.1rem 1.25rem; box-shadow: var(--shadow); }
.stat-card .label { font-size: .78rem; font-weight: 600; color: var(--c-muted); text-transform: uppercase; letter-spacing: .05em; }
.stat-card .value { font-size: 1.9rem; font-weight: 700; color: var(--c-primary); margin-top: .1rem; }
.stat-card .sub   { font-size: .8rem; color: var(--c-muted); margin-top: .15rem; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .5rem 1rem; border-radius: 6px; font-size: .875rem;
  font-weight: 500; font-family: var(--font); cursor: pointer;
  text-decoration: none; border: 1.5px solid transparent;
  transition: background .15s, border-color .15s, box-shadow .15s;
  line-height: 1;
}
.btn-primary  { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-h); }
.btn-success  { background: var(--c-success); color: #fff; }
.btn-success:hover { opacity: .9; }
.btn-danger   { background: var(--c-danger);  color: #fff; }
.btn-danger:hover  { opacity: .9; }
.btn-outline  { background: transparent; color: rgba(255,255,255,.9); border-color: rgba(255,255,255,.5); }
.btn-outline:hover { background: rgba(255,255,255,.15); }
.btn-ghost    { background: transparent; color: var(--c-primary); border-color: var(--c-border); }
.btn-ghost:hover { background: var(--c-bg); }
.btn-sm { padding: .3rem .65rem; font-size: .8rem; }
.btn-icon { padding: .4rem; }

/* ---- Table ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead th {
  background: #f0f2f6; font-weight: 600; text-align: left;
  padding: .65rem 1rem; border-bottom: 2px solid var(--c-border);
  white-space: nowrap; color: var(--c-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em;
}
tbody tr { border-bottom: 1px solid var(--c-border); transition: background .1s; }
tbody tr:hover { background: #f8fafc; }
tbody td { padding: .6rem 1rem; vertical-align: middle; }
tbody td:last-child { white-space: nowrap; }

/* ---- Badges ---- */
.badge {
  display: inline-block; padding: .2rem .55rem; border-radius: 20px;
  font-size: .73rem; font-weight: 600; letter-spacing: .02em;
}
.badge-green  { background: #dcfce7; color: #15803d; }
.badge-red    { background: #fee2e2; color: #b91c1c; }
.badge-blue   { background: #dbeafe; color: #1d4ed8; }
.badge-yellow { background: #fef9c3; color: #854d0e; }
.badge-gray   { background: #f3f4f6; color: #4b5563; }

/* ---- Search / filter bar ---- */
.toolbar { display: flex; gap: .75rem; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; }
.search-input {
  flex: 1; min-width: 200px; padding: .5rem .9rem; border: 1.5px solid var(--c-border);
  border-radius: 6px; font-family: var(--font); font-size: .875rem; background: var(--c-surface);
  transition: border-color .15s, box-shadow .15s;
}
.search-input:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(29,95,166,.12); }
select.filter-select {
  padding: .5rem .75rem; border: 1.5px solid var(--c-border); border-radius: 6px;
  font-family: var(--font); font-size: .875rem; background: var(--c-surface); cursor: pointer;
}
select.filter-select:focus { outline: none; border-color: var(--c-primary); }

/* ---- Pagination ---- */
.pagination { display: flex; gap: .4rem; align-items: center; margin-top: 1rem; justify-content: flex-end; }
.pagination a, .pagination span {
  padding: .35rem .65rem; border-radius: 5px; font-size: .82rem; text-decoration: none;
  border: 1px solid var(--c-border); color: var(--c-text); background: var(--c-surface);
}
.pagination a:hover { background: var(--c-bg); }
.pagination .active { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.pagination .disabled { color: var(--c-muted); pointer-events: none; }

/* ---- Forms ---- */
.form-grid { display: grid; gap: 1rem; }
.form-grid-2 { grid-template-columns: 1fr 1fr; }
.form-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group label { font-size: .8rem; font-weight: 600; color: var(--c-muted); text-transform: uppercase; letter-spacing: .04em; }
.form-group input, .form-group select, .form-group textarea {
  padding: .5rem .8rem; border: 1.5px solid var(--c-border); border-radius: 6px;
  font-family: var(--font); font-size: .9rem; background: var(--c-surface); color: var(--c-text);
  transition: border-color .15s, box-shadow .15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(29,95,166,.12);
}
.form-section { margin-bottom: 1.5rem; }
.form-section-title {
  font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: var(--c-primary); border-bottom: 2px solid var(--c-primary); padding-bottom: .4rem; margin-bottom: 1rem;
}
.form-actions { display: flex; gap: .75rem; padding-top: 1rem; border-top: 1px solid var(--c-border); margin-top: 1.5rem; }

/* ---- Alerts ---- */
.alert { padding: .75rem 1rem; border-radius: 6px; font-size: .875rem; margin-bottom: 1rem; display: flex; gap: .6rem; align-items: flex-start; }
.alert-success { background: #dcfce7; color: #15803d; border: 1px solid #bbf7d0; }
.alert-error   { background: #fee2e2; color: #b91c1c; border: 1px solid #fecaca; }
.alert-warn    { background: #fef9c3; color: #854d0e; border: 1px solid #fef08a; }

/* ---- Login page ---- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1d5fa6 0%, #0c3566 100%); }
.login-card { background: #fff; border-radius: 12px; padding: 2.5rem 2rem; width: 100%; max-width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,.25); }
.login-logo { text-align: center; margin-bottom: 1.75rem; }
.login-logo svg { color: var(--c-primary); }
.login-logo h1 { font-size: 1.15rem; font-weight: 700; margin-top: .5rem; color: var(--c-text); }
.login-logo p  { font-size: .82rem; color: var(--c-muted); }

/* ---- Modal ---- */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 500; opacity: 0; pointer-events: none; transition: opacity .2s; }
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal { background: #fff; border-radius: var(--radius); width: 90%; max-width: 500px; box-shadow: 0 20px 60px rgba(0,0,0,.25); transform: translateY(20px); transition: transform .2s; }
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header { padding: 1.1rem 1.5rem; border-bottom: 1px solid var(--c-border); display: flex; align-items: center; justify-content: space-between; font-weight: 600; }
.modal-body   { padding: 1.5rem; }
.modal-footer { padding: .9rem 1.5rem; border-top: 1px solid var(--c-border); display: flex; justify-content: flex-end; gap: .75rem; }

/* ---- Misc utilities ---- */
.text-muted { color: var(--c-muted); }
.text-small { font-size: .82rem; }
.mono { font-family: var(--font-mono); }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }
.ear-badge-l { background: #ede9fe; color: #5b21b6; padding: .15rem .45rem; border-radius: 4px; font-size: .75rem; font-weight: 700; }
.ear-badge-r { background: #fce7f3; color: #be185d; padding: .15rem .45rem; border-radius: 4px; font-size: .75rem; font-weight: 700; }

@media (max-width: 768px) {
  .form-grid-2, .form-grid-3 { grid-template-columns: 1fr; }
  .main-content { padding: 1rem; }
  .nav-links { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}