/* ==========================================================================
   Connect WhatsApp — Back-office admin design system
   Shared across dashboard (index), API keys, and reports pages.
   Single source of truth for theme tokens, layout, and common components.
   ========================================================================== */

:root {
  /* Surfaces */
  --bg:            #0b141a;   /* app / sidebar background (darkest) */
  --surface:       #111b21;   /* main content background */
  --panel:         #1f2c34;   /* cards, panels */
  --panel-2:       #2a3942;   /* inputs, table headers, hover */
  --panel-3:       #243039;   /* row hover */
  --border:        #22323c;
  --border-strong: #3b4a54;

  /* Text */
  --text:   #e9edef;
  --muted:  #8696a0;
  --heading:#aebac1;

  /* Brand + semantic */
  --accent:        #00a884;
  --accent-hover:  #06cf9c;
  --accent-ink:    #04231b;   /* text on accent fills */
  --accent-soft:   #14323f;
  --info:          #53bdeb;
  --info-soft:     #7fc4e0;
  --success:       #4ade80;
  --success-bg:    #1c4a2a;
  --warn:          #d8c178;
  --warn-bg:       #3a3320;
  --danger:        #f87171;
  --danger-bg:     #4a1c1c;

  /* Shape + rhythm */
  --radius:    14px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --sidebar-w: 250px;
  --topbar-h:  62px;
  /* Width cap for page content. `none` = full bleed: every page uses the whole
     main column at any screen size. Set a length here (e.g. 1600px) to cap and
     centre the content instead — nothing else needs to change. */
  --content-max: none;
  --shadow:    0 8px 30px rgba(0, 0, 0, 0.35);
}

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

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--surface);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.hidden { display: none !important; }
.muted  { color: var(--muted); font-size: 12px; }

/* ==========================================================================
   Layout: sidebar + main
   ========================================================================== */

.admin-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 60;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 20px 20px 18px;
  border-bottom: 1px solid var(--border);
}
.brand-logo {
  width: 38px; height: 38px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 11px;
  font-size: 20px;
}
.brand-name { font-size: 16px; font-weight: 700; color: var(--text); line-height: 1.2; }
.brand-name span { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 0.04em; }

.nav {
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  overflow-y: auto;
}
.nav-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 8px 12px 4px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 13px;
  border-radius: var(--radius-sm);
  color: var(--heading);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border: none;
  background: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: background 0.15s, color 0.15s;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(0,168,132,0.18), rgba(0,168,132,0.06));
  color: var(--accent-hover);
  box-shadow: inset 3px 0 0 var(--accent);
}
.nav-item .ni-ico { font-size: 17px; width: 20px; text-align: center; flex-shrink: 0; }

/* Collapsible submenu (System Setting) */
.nav-group { display: flex; flex-direction: column; }
.nav-parent .nav-caret { margin-left: auto; font-size: 11px; color: var(--muted); transition: transform 0.15s; }
.nav-group.open .nav-parent .nav-caret { transform: rotate(180deg); }
.nav-parent.active-within { color: var(--text); }
.nav-sub {
  display: none; flex-direction: column; gap: 4px;
  margin: 2px 0 2px 15px; padding-left: 10px;
  border-left: 1px solid var(--border);
}
.nav-group.open .nav-sub { display: flex; }
.nav-item.nav-child { font-size: 13px; padding: 9px 12px; }

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border);
}
.sidebar-footer .nav-item.signout { color: var(--muted); }
.sidebar-footer .nav-item.signout:hover { color: var(--danger); background: var(--danger-bg); }

/* Main column */
.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: var(--topbar-h);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 24px;
  background: rgba(17, 27, 33, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 40;
}
.page-title { font-size: 18px; font-weight: 700; color: var(--text); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* Content fills the whole main column at every width. min-width:0 lets wide
   children (tables, pre) shrink instead of forcing the page wider than the
   viewport. margin-inline:auto is a no-op while --content-max is `none`, and
   centres the content if a cap is ever set. */
.content {
  padding: 24px;
  flex: 1;
  width: 100%;
  min-width: 0;
  margin-inline: auto;
}
.content-narrow { max-width: var(--content-max); }

/* Hamburger (mobile only) */
.hamburger {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
}
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 55;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  white-space: nowrap;
}
.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.secondary { background: var(--panel-2); color: var(--text); }
.btn.secondary:hover { background: var(--border-strong); }
.btn.danger { background: var(--danger-bg); color: var(--danger); }
.btn.danger:hover { background: #5e2424; }
.btn.small { padding: 6px 12px; font-size: 13px; }
.btn.block { width: 100%; }

/* ==========================================================================
   Forms
   ========================================================================== */

/* min-width:0 so a field in a flex/grid row can shrink below the intrinsic
   width of its control (native date inputs are the usual offender). */
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field label,
.form-group label { font-size: 12px; color: var(--muted); }

input, select, textarea { font-family: inherit; }

.field input, .field select,
.form-group input, .form-group textarea,
.input {
  width: 100%;
  padding: 10px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.field input:focus, .field select:focus,
.form-group input:focus, .form-group textarea:focus,
.input:focus { border-color: var(--accent); }
.form-group { margin-bottom: 14px; }
.form-group textarea { resize: vertical; min-height: 84px; }
input[type="date"] { color-scheme: dark; }

/* ==========================================================================
   Cards & panels
   ========================================================================== */

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 20px;
}
.card h2 { font-size: 15px; color: var(--heading); margin-bottom: 14px; font-weight: 600; }

/* ==========================================================================
   Tables
   ========================================================================== */

.table-wrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow-x: auto;
  /* Momentum scrolling + a hint that the table pans on touch devices. */
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}
table { width: 100%; border-collapse: collapse; }
/* Floor the table width so narrow viewports scroll the wrapper instead of
   crushing columns into unreadable slivers. */
.table-wrap > table { min-width: 640px; }
thead th {
  background: var(--panel-2);
  text-align: left;
  padding: 12px 14px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}
tbody td { padding: 12px 14px; border-top: 1px solid var(--border); font-size: 14px; vertical-align: middle; }
tbody tr:hover { background: var(--panel-3); }
.col-num { width: 40px; color: var(--muted); }
.mono { font-variant-numeric: tabular-nums; }
.empty { text-align: center; padding: 40px; color: var(--muted); font-size: 14px; }

/* ==========================================================================
   Badges, chips, dots
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.badge.active, .badge.connected { background: var(--success-bg); color: var(--success); }
.badge.pending { background: var(--warn-bg); color: var(--warn); }
.badge.expired, .badge.sent { background: var(--panel-2); color: var(--heading); }
.badge.delivered { background: #1c3a4a; color: var(--info-soft); }
.badge.read, .badge.played { background: var(--accent-soft); color: var(--info); }
.badge.revoked, .badge.error, .badge.disconnected { background: var(--danger-bg); color: var(--danger); }
.badge.loading { background: var(--warn-bg); color: var(--warn); }

.chip {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--heading);
}
.chip b { color: var(--text); }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.dot.connected { background: var(--success); }
.dot.disconnected { background: var(--danger); }
.dot.loading { background: var(--warn); }

/* ==========================================================================
   Toast
   ========================================================================== */

.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  z-index: 1000;
  box-shadow: var(--shadow);
  animation: toastIn 0.3s ease;
}
.toast.success { background: var(--success-bg); color: var(--success); }
.toast.error { background: var(--danger-bg); color: var(--danger); }
@keyframes toastIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ==========================================================================
   Spinner
   ========================================================================== */

.spinner {
  display: inline-block;
  width: 40px; height: 40px;
  border: 3px solid var(--panel-2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 20px 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================================================
   Login overlay + modal (shared)
   ========================================================================== */

/* Split-screen login: brand/marketing hero on the left, sign-in card on the right. */
.overlay {
  position: fixed; inset: 0;
  background: var(--surface);
  display: flex;
  z-index: 100;
}
.login-split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  width: 100%; min-height: 100%;
}

/* Left — hero / value props */
.login-hero {
  position: relative; overflow: hidden;
  display: flex; align-items: center;
  padding: 6vh 5%;
  background:
    radial-gradient(1100px 550px at 12% 8%, rgba(255,255,255,0.12), transparent 60%),
    linear-gradient(150deg, #00a884 0%, #047a60 45%, #044d44 100%);
  color: #eafff7;
}
.login-hero::after {
  content: ''; position: absolute; inset: 0; opacity: 0.14; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.18) 1px, transparent 1px);
  background-size: 44px 44px;
}
.login-hero-inner { position: relative; z-index: 1; max-width: 470px; margin: 0 auto; }
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 46px; }
.login-brand-logo {
  width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.16); border-radius: 11px; font-size: 21px;
}
.login-brand-name { font-size: 20px; font-weight: 700; color: #fff; }
.login-hero-title { font-size: 38px; line-height: 1.12; font-weight: 800; color: #fff; margin-bottom: 18px; }
.login-hero-sub { font-size: 15px; line-height: 1.65; color: rgba(255,255,255,0.85); margin-bottom: 36px; max-width: 430px; }
.login-features { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.login-features li { display: flex; align-items: center; gap: 12px; font-size: 14px; color: rgba(255,255,255,0.94); }
.login-features li span { font-size: 18px; width: 22px; text-align: center; }

/* Right — sign-in card */
.login-panel {
  display: flex; align-items: center; justify-content: center;
  padding: 6vh 8%; background: var(--surface);
}
.login-card {
  width: 100%; max-width: 380px; text-align: left;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 16px; padding: 32px; box-shadow: var(--shadow);
}
.login-card h1 { font-size: 24px; font-weight: 800; color: var(--heading); margin-bottom: 4px; }
.login-card-sub { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.login-label { display: block; font-size: 13px; color: var(--muted); margin: 4px 0 6px; }
.login-card input {
  width: 100%; padding: 11px 12px; margin-bottom: 16px;
  background: var(--panel-2); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); color: var(--text); font-size: 14px; outline: none;
}
.login-card input:focus { border-color: var(--accent); }
.login-submit {
  width: 100%; margin-top: 6px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
}
.login-submit:not(:disabled)::after { content: '  →'; }
.login-foot { text-align: center; font-size: 12px; color: var(--muted); margin-top: 18px; }
.err { color: var(--danger); font-size: 13px; margin-top: 8px; min-height: 18px; }

@media (max-width: 860px) {
  .login-split { grid-template-columns: 1fr; }
  .login-hero { display: none; }
  .login-panel { padding: 40px 20px; align-items: flex-start; }
}

.modal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 200; padding: 20px;
}
.modal {
  width: 100%; max-width: 400px;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; text-align: left;
  box-shadow: var(--shadow);
}
.modal h2 { color: var(--accent); font-size: 18px; margin-bottom: 6px; }
.modal p { color: var(--muted); font-size: 13px; margin-bottom: 16px; }
.modal input {
  width: 100%; padding: 10px 12px;
  background: var(--panel-2); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); color: var(--text); font-size: 14px;
  outline: none; margin-bottom: 12px;
}
.modal input:focus { border-color: var(--accent); }
.modal .modal-actions { display: flex; gap: 10px; }
.modal .modal-actions .btn { flex: 1; }

/* ==========================================================================
   Scrollbars
   ========================================================================== */

.scroll-y { overflow-y: auto; }
.scroll-y::-webkit-scrollbar,
.nav::-webkit-scrollbar { width: 6px; }
.scroll-y::-webkit-scrollbar-thumb,
.nav::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

/* ==========================================================================
   Responsive: collapse sidebar into off-canvas drawer
   ========================================================================== */

/* Laptop / small desktop: tighten the gutters so the working area keeps its
   width instead of the padding eating into the table. */
@media (max-width: 1280px) {
  .content { padding: 20px; }
  .topbar { padding: 0 20px; }
}

@media (max-width: 880px) {
  .sidebar {
    position: fixed;
    left: 0; top: 0;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: var(--shadow);
  }
  body.nav-open .sidebar { transform: translateX(0); }
  body.nav-open .sidebar-backdrop { display: block; }
  .hamburger { display: inline-flex; }
  .content { padding: 18px 16px; }
  .topbar { padding: 0 16px; }
}

/* Phones: the topbar can no longer hold title + actions on one line, so let it
   grow and give the actions their own row. Trim the paddings that cost the most
   horizontal room. */
@media (max-width: 640px) {
  .topbar {
    height: auto;
    min-height: var(--topbar-h);
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px 14px;
  }
  .page-title { font-size: 16px; }
  .topbar-actions { margin-left: 0; width: 100%; }
  .topbar-actions .btn { flex: 1; }
  .content { padding: 14px 12px; }
  .card { padding: 14px; margin-bottom: 14px; }
  .btn { padding: 9px 14px; }
  thead th { padding: 10px; }
  tbody td { padding: 10px; font-size: 13px; }
  .modal { padding: 18px; }
}