/* ---------------------------------------------------------------------
   Pay4All - design system
   --------------------------------------------------------------------- */
:root {
  --bg:          #f7f8fa;
  --bg-elevated: #ffffff;
  --surface:     #ffffff;
  --border:      #e4e6ea;
  --border-strong: #c8ccd2;
  --text:        #0e1937;
  --text-muted:  #5a6573;
  --text-soft:   #8b94a3;
  --primary:     #7f56d9;
  --primary-hover:#6941b8;
  --primary-soft:#f4f0ff;
  --success:     #198754;
  --warning:     #c47c0a;
  --danger:      #c0392b;
  --info:        #0a7d9a;
  --shadow-sm:   0 1px 2px rgba(15, 23, 42, .06);
  --shadow:      0 4px 12px rgba(15, 23, 42, .08);
  --radius:      8px;
  --radius-sm:   4px;
  color-scheme: light;
}

html[data-theme="dark"], html[data-theme="auto"][data-prefers="dark"] {
  --bg:          #0e1117;
  --bg-elevated: #161b22;
  --surface:     #1a2030;
  --border:      #2a313c;
  --border-strong:#3a4250;
  --text:        #eaecef;
  --text-muted:  #a7b0bc;
  --text-soft:   #6b7480;
  --primary:     #a78bda;
  --primary-hover:#bda3e6;
  --primary-soft:#2a1f4d;
  --success:     #2dbb6b;
  --warning:     #e5a020;
  --danger:      #ef6f63;
  --info:        #4fb6d0;
  --shadow-sm:   0 1px 2px rgba(0,0,0,.45);
  --shadow:      0 4px 16px rgba(0,0,0,.4);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  html[data-theme="auto"] {
    --bg:          #0e1117;
    --bg-elevated: #161b22;
    --surface:     #1a2030;
    --border:      #2a313c;
    --border-strong:#3a4250;
    --text:        #eaecef;
    --text-muted:  #a7b0bc;
    --text-soft:   #6b7480;
    --primary:     #a78bda;
    --primary-hover:#bda3e6;
    --primary-soft:#2a1f4d;
    --success:     #2dbb6b;
    --warning:     #e5a020;
    --danger:      #ef6f63;
    --info:        #4fb6d0;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5rem; color: var(--text); }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }
hr { border: 0; border-top: 1px solid var(--border); margin: 1.5rem 0; }
small { color: var(--text-muted); }
code { background: var(--surface); padding: 1px 6px; border-radius: 3px; font-size: 90%; }

/* ----- Layout ------------------------------------------------------- */
.container { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
.container-narrow { max-width: 480px; margin: 0 auto; padding: 1.5rem; }

:root { --header-height: 64px; }
body { padding-top: var(--header-height); }

.site-header {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
}
.site-header .container {
  display: flex; align-items: center; gap: 1.5rem; padding: .75rem 1.5rem;
}
.site-header .brand {
  font-weight: 700; font-size: 1.1rem; color: var(--text);
  display: inline-flex; align-items: center;
}
.site-header .brand img { display: block; height: 30px; width: auto; }
.site-header nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.site-header nav a {
  color: var(--text-muted); padding: .35rem .5rem; border-radius: var(--radius-sm);
}
.site-header nav a:hover, .site-header nav a.is-active {
  color: var(--text); background: var(--primary-soft); text-decoration: none;
}
.site-header .spacer { flex: 1; }

/* Header layout: brand + burger + collapsible (nav + actions) */
.site-header .container {
  flex-wrap: wrap;
}
.site-header .header-collapse {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex: 1;
}
.site-header .site-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
/* Lien du menu correspondant à la page courante : coloré en violet Pay4All
 * pour indiquer où on est (ex. /p/pay4all-shop → « Pay4All Shop » en violet
 * dans la barre). La classe `.is-active` est posée par
 * partials/public_header_nav.php quand REQUEST_URI matche le slug de
 * la page. Souligné pour renforcer le signal visuel sans casser le
 * layout inline (pas de bordure qui pousserait le texte). */
.site-header .site-nav a.is-active,
.site-header .site-nav a[aria-current="page"] {
  color: #7531E3;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
}
.site-header .header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
/* Burger button: 3 horizontal bars that morph into an X when expanded.
   NB: the header is `position: fixed` (line 100) which already gives
   `.header-collapse` a positioning context — do NOT re-declare
   `.site-header { position: relative }` here, it would break the sticky
   header on scroll. */
.site-header .burger-toggle {
  display: none;
  position: relative;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text);
}
.site-header .burger-toggle span {
  position: absolute;
  left: 5px;
  right: 5px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transform-origin: center;
  transition: top .25s ease, transform .25s ease, opacity .15s ease;
}
.site-header .burger-toggle span:nth-child(1) { top: 9px; }
.site-header .burger-toggle span:nth-child(2) { top: 15px; }
.site-header .burger-toggle span:nth-child(3) { top: 21px; }
.site-header .burger-toggle[aria-expanded="true"] span:nth-child(1) {
  top: 15px;
  transform: rotate(45deg);
}
.site-header .burger-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.site-header .burger-toggle[aria-expanded="true"] span:nth-child(3) {
  top: 15px;
  transform: rotate(-45deg);
}

@media (max-width: 1200px) {
  .site-header .container { flex-wrap: nowrap; }
  .site-header .burger-toggle {
    display: inline-block;
    margin-left: auto;
  }
  /* Collapsible nav floats as an overlay below the header — does not
     push the page content down. */
  .site-header .header-collapse {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: .75rem;
    margin: 0;
    padding: 1rem 1.5rem;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow);
    z-index: 100;
  }
  .site-header .header-collapse.is-open { display: flex; }
  .site-header .site-nav { flex-direction: column; gap: .25rem; }
  .site-header .header-actions {
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: .35rem;
  }
  /* Separator lines inside the burger menu:
       — one before the languages (separates them from the pages above)
       — one before the login/logout button (separates it from the theme) */
  .site-header .header-actions > .lang-switcher,
  .site-header .header-actions > form,
  .site-header .header-actions > a.btn {
    border-top: 1px solid var(--border);
    padding-top: .7rem;
    margin-top: .35rem;
  }
  /* Theme toggle stays grouped with the language switcher (no top border) */
  .site-header .header-actions > .theme-toggle { border-top: 0; padding-top: 0; }
}

.site-footer {
  color: var(--text-soft);
  padding: 2rem 1.5rem; text-align: center; font-size: 13px;
}
.site-footer form { display: inline; }
.site-footer .btn-link {
  background: none; border: none; padding: 0; font: inherit; color: var(--primary);
  cursor: pointer; text-decoration: underline;
}
.site-footer .btn-link:hover { color: var(--primary-hover); }

/* ----- Cards -------------------------------------------------------- */
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}
.card-header { display: flex; align-items: center; gap: 1rem; margin-bottom: .75rem; }
.card-header h2, .card-header h3 { margin: 0; }
.card-actions { margin-left: auto; display: flex; gap: .5rem; }

/* ----- Buttons ------------------------------------------------------ */
.btn {
  display: inline-block; padding: .55rem 1rem;
  border-radius: var(--radius); font-weight: 500; font-size: 14px;
  border: 1px solid var(--border-strong); background: var(--bg-elevated);
  color: var(--text); cursor: pointer; transition: background .15s, border-color .15s;
  text-decoration: none;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); color:#fff; text-decoration:none; }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(.95); color: #fff; text-decoration:none; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--surface); color: var(--text); }
.btn-outline-danger { background: #fff; border-color: #BA1200; color: #BA1200; }
.btn-outline-danger:hover { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); text-decoration:none; }
.btn-outline-primary { background: #fff; border-color: #7F56D9; color: #7F56D9; }
.btn-outline-primary:hover { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); text-decoration:none; }
.btn-sm { padding: .3rem .65rem; font-size: 13px; }
.btn-block { display: block; width: 100%; text-align: center; }

/* ----- Forms -------------------------------------------------------- */
.form-row { margin-bottom: 1rem; }
.form-row label { display: block; font-weight: 500; margin-bottom: .25rem; font-size: 13px; color: var(--text-muted); }
.form-row .hint { display: block; font-size: 12px; color: var(--text-soft); margin-top: .25rem; }
.form-row.has-error input, .form-row.has-error select, .form-row.has-error textarea { border-color: var(--danger); }
.form-error { color: var(--danger); font-size: 12px; margin-top: .25rem; }

input[type=text], input[type=email], input[type=password], input[type=number], input[type=url],
input[type=search], input[type=tel], input[type=date], input[type=time],
input[type=datetime-local], input[type=month], input[type=week], input[type=file],
input:not([type]), select, textarea {
  width: 100%; padding: .55rem .7rem;
  background: var(--bg-elevated); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  font: inherit;
  box-sizing: border-box;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--primary); outline-offset: -1px;
  border-color: var(--primary);
}
input[type=file] { padding: .3rem .5rem; }
.checkbox { display: flex; align-items: center; gap: .5rem; }
.checkbox input,
input[type=checkbox], input[type=radio] {
  width: auto; margin: 0;
  padding: 0; border: initial; background: initial;
}

/* ----- Tables ------------------------------------------------------- */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: .65rem .75rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { font-weight: 600; color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; background: var(--bg); }
.table tr:hover td { background: var(--bg); }
.table .actions { white-space: nowrap; text-align: right; }

/* ----- Status badges ------------------------------------------------ */
.badge {
  display: inline-block; padding: .15rem .55rem;
  border-radius: 999px; font-size: 12px; font-weight: 500;
  background: var(--surface); color: var(--text-muted);
  border: 1px solid var(--border);
}
.badge-success    { background: rgba(25,135,84,.12);  color: var(--success); border-color: transparent; }
.badge-warning    { background: rgba(196,124,10,.14); color: var(--warning); border-color: transparent; }
.badge-danger     { background: rgba(192,57,43,.13);  color: var(--danger);  border-color: transparent; }
.badge-info       { background: rgba(10,125,154,.13); color: var(--info);    border-color: transparent; }
.badge-primary    { background: var(--primary-soft);  color: var(--primary); border-color: transparent; }

/* ----- Alerts ------------------------------------------------------- */
.alert { padding: .85rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; border: 1px solid transparent; }
.alert-success { background: rgba(45,187,107,.10); color: var(--success); border-color: rgba(45,187,107,.25); }
.alert-warning { background: rgba(196,124,10,.10); color: var(--warning); border-color: rgba(196,124,10,.25); }
.alert-danger  { background: rgba(192,57,43,.10);  color: var(--danger);  border-color: rgba(192,57,43,.25); }
.alert-info    { background: rgba(10,125,154,.10); color: var(--info);    border-color: rgba(10,125,154,.25); }

/* ----- Modal dialog ------------------------------------------------- */
dialog.modal {
  padding: 0; border: none; border-radius: var(--radius);
  background: var(--bg-elevated); color: var(--text);
  box-shadow: var(--shadow); width: 100%; max-width: 440px;
}
dialog.modal::backdrop { background: rgba(0,0,0,.45); }
dialog.modal .modal-body { padding: 1.25rem 1.25rem 1rem; }
dialog.modal h3 { margin: 0 0 .75rem; font-size: 18px; }
dialog.modal .modal-actions { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1rem; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; padding: 0; border-radius: var(--radius);
  border: 1px solid var(--border-strong); background: var(--bg-elevated);
  color: var(--text-muted); cursor: pointer; transition: background .15s, color .15s, border-color .15s;
}
.icon-btn:hover { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
.icon-btn-sm { width: 26px; height: 26px; }
.icon-btn-danger { color: var(--danger); }
.icon-btn-danger:hover { background: rgba(192,57,43,.10); border-color: var(--danger); color: var(--danger); }
.sub-amount { font-size: 12px; }
.note-trigger {
  background: transparent; border: 0; outline: 0; box-shadow: none;
  padding: 0; margin: 0; cursor: pointer;
  font: inherit; color: inherit; text-align: left;
  -webkit-appearance: none; appearance: none;
}
.note-trigger:focus, .note-trigger:focus-visible { outline: 0; box-shadow: none; }
.note-trigger:hover span { text-decoration: underline; }
.stat .stat-label { color: var(--text-muted); font-size: 13px; }
.stat .stat-value { font-size: 1.75rem; font-weight: 700; line-height: 1.1; margin-top: .25rem; }
.stat .stat-value-xl { font-size: 2.25rem; font-weight: 700; line-height: 1.1; margin-top: .35rem; }
.stat-row .stat { text-align: center; }

/* ----- Auth layout -------------------------------------------------- */
.auth-shell { min-height: 100vh; display: flex; flex-direction: column; }
.auth-content { flex: 1; display: flex; align-items: center; justify-content: center; padding: 2rem 1rem; }
.auth-card { width: 100%; max-width: 500px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow); }
.auth-card h1 { text-align: center; margin-bottom: 1.25rem; }
.auth-card .sub-actions { display: flex; justify-content: space-between; font-size: 13px; margin-top: 1rem; color: var(--text-muted); }

/* ----- Utility ------------------------------------------------------ */
.text-muted { color: var(--text-muted); }
.text-soft  { color: var(--text-soft); }
.text-center{ text-align: center; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.flex { display: flex; }
.flex-gap { gap: 1rem; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .site-header .container { flex-wrap: wrap; }

  /* +10% reading size on phones */
  body { font-size: 16.5px; }

  /* +20% size inside the burger menu for easier tap targets */
  .site-header .header-collapse .site-nav a {
    font-size: 18px;
    padding: .65rem .75rem;
  }
  .site-header .header-collapse .lang-switcher a,
  .site-header .header-collapse .theme-toggle a {
    font-size: 14.4px;
    padding: 5px 12px;
  }
  .site-header .header-collapse .btn,
  .site-header .header-collapse form button {
    font-size: 15.6px;
    padding: .6rem 1rem;
  }
}

.metric { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; }
.metric .value { font-size: 1.8rem; font-weight: 700; }
.metric .label { font-size: 13px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }

/* ----- Sidebar (admin) --------------------------------------------- */
.admin-layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.admin-sidebar { background: var(--bg-elevated); border-right: 1px solid var(--border); padding: 1rem 0; }
.admin-sidebar .brand { padding: 0 1rem 1rem; font-weight: 700; font-size: 1.1rem; display: flex; align-items: center; gap: .5rem; }
.admin-sidebar .brand img { display: block; height: 32px; width: auto; }
.admin-sidebar a {
  display: block; padding: .5rem 1rem; color: var(--text-muted);
  border-left: 3px solid transparent;
}
.admin-sidebar a:hover { background: var(--bg); color: var(--text); text-decoration: none; }
.admin-sidebar a.is-active { background: var(--primary-soft); color: var(--primary); border-left-color: var(--primary); }
.admin-main { padding: 1.5rem; }
@media (max-width: 800px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar { border-right: 0; border-bottom: 1px solid var(--border); }
}

/* ----- Misc -------------------------------------------------------- */
.theme-toggle, .lang-switcher {
  font-size: 13px;
  color: var(--text-muted);
  display: inline-flex;
  gap: .25rem;
  align-items: center;
  flex-wrap: wrap;
}
.theme-toggle a, .lang-switcher a {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.4;
  text-decoration: none;
  transition: background .12s, color .12s, border-color .12s;
}
.theme-toggle a:hover, .lang-switcher a:hover {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: var(--primary-soft);
  text-decoration: none;
}
.theme-toggle a.is-active, .lang-switcher a.is-active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  font-weight: 600;
}

/* Sidebar rows for theme/lang at the bottom of the admin sidebar */
.sidebar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding: .35rem 0;
  font-size: 12px;
  color: var(--text-muted);
}
.sidebar-row > span.sidebar-label {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  flex-shrink: 0;
}

/* Inline SVG icon helper */
.icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

/* Sidebar menu items: align icon + label horizontally */
.admin-sidebar nav a {
  display: flex;
  align-items: center;
  gap: .55rem;
}
.admin-sidebar nav a .icon { opacity: .8; }
.admin-sidebar nav a:hover .icon,
.admin-sidebar nav a.is-active .icon { opacity: 1; }

.totals { font-weight: 600; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }

/* ---------------------------------------------------------------------
   Logo light/dark — affiche pay4all.png en clair, pay4all-white.png en
   sombre. Bloc placé en fin de fichier pour passer en dernier dans la
   cascade et battre `.site-header .brand img` + `.admin-sidebar .brand img`
   (mêmes spécificités). Logique de thème alignée sur les variables :
   data-theme="dark" forcé, "auto" + JS data-prefers="dark", fallback @media.
   --------------------------------------------------------------------- */
.brand img.brand-logo-dark { display: none; }
html[data-theme="dark"] .brand img.brand-logo-light,
html[data-theme="auto"][data-prefers="dark"] .brand img.brand-logo-light { display: none; }
html[data-theme="dark"] .brand img.brand-logo-dark,
html[data-theme="auto"][data-prefers="dark"] .brand img.brand-logo-dark { display: block; }
@media (prefers-color-scheme: dark) {
    html[data-theme="auto"] .brand img.brand-logo-light { display: none; }
    html[data-theme="auto"] .brand img.brand-logo-dark  { display: block; }
}