/* ============================================================
   SwiftPayHub Pro – Core Design System
   ============================================================ */

/* ----- CSS Variables ----- */
:root {
  --bg: #f0f4f8;
  --surface: rgba(255,255,255,0.85);
  --surface-2: rgba(255,255,255,0.6);
  --ink: #0f1a2e;
  --muted: #6b7a8f;
  --line: rgba(0,0,0,0.08);
  --primary: #2a6df4;
  --primary-2: #1a5ad0;
  --primary-soft: rgba(42,109,244,0.12);
  --success: #0faf7a;
  --success-soft: rgba(15,175,122,0.12);
  --danger: #e84c5e;
  --danger-soft: rgba(232,76,94,0.12);
  --warning: #e5a03a;
  --warning-soft: rgba(229,160,58,0.12);
  --shadow: 0 8px 32px rgba(0,0,0,0.06);
  --shadow-lg: 0 16px 56px rgba(0,0,0,0.10);
  --radius: 20px;
  --sidebar: 260px;
  --glass-bg: rgba(255,255,255,0.7);
  --glass-border: rgba(255,255,255,0.3);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html.dark {
  --bg: #0b1424;
  --surface: rgba(20,30,50,0.88);
  --surface-2: rgba(20,30,50,0.5);
  --ink: #e8edf5;
  --muted: #8b9bb0;
  --line: rgba(255,255,255,0.06);
  --primary: #5b8cff;
  --primary-soft: rgba(91,140,255,0.15);
  --glass-bg: rgba(10,18,34,0.75);
  --glass-border: rgba(255,255,255,0.05);
  --shadow: 0 8px 32px rgba(0,0,0,0.25);
  --shadow-lg: 0 16px 56px rgba(0,0,0,0.35);
}

/* ----- Reset & Base ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.7 'Inter', 'Segoe UI', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-2); }

/* ----- Scrollbar ----- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-2); }

/* ----- Typography ----- */
h1, h2, h3, h4 { letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }

/* ----- Glass Cards ----- */
.card, .stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover, .stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.card { padding: 24px; }
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.card-head h3 { margin: 0; }

.stat-card {
  padding: 20px 22px;
  position: relative;
  overflow: hidden;
}
.stat-card .label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
}
.stat-card .value {
  font-size: 28px;
  font-weight: 800;
  margin-top: 4px;
  line-height: 1.2;
}
.stat-card .accent { color: var(--primary); }

/* ----- Grids ----- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* ----- Tables ----- */
.table-wrap {
  overflow: auto;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
}
.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}
.table-wrap th {
  padding: 14px 16px;
  text-align: left;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  background: var(--surface-2);
  font-weight: 600;
}
.table-wrap td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.table-wrap tr:last-child td { border-bottom: none; }
.table-wrap tbody tr:hover { background: var(--primary-soft); }

/* ----- Forms ----- */
label {
  display: block;
  margin: 16px 0 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  font-size: 14px;
  transition: border var(--transition), box-shadow var(--transition);
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
}
textarea { min-height: 100px; resize: vertical; }

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: all var(--transition);
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 20px rgba(42,109,244,0.25);
}
.btn-primary:hover { color: #fff; }
.btn-success {
  background: var(--success-soft);
  border-color: transparent;
  color: var(--success);
}
.btn-danger {
  background: var(--danger-soft);
  border-color: transparent;
  color: var(--danger);
}
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-block { width: 100%; }

/* ----- Badges ----- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-danger  { background: var(--danger-soft);  color: var(--danger); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-neutral { background: var(--surface-2);    color: var(--muted); }

/* ----- Alerts ----- */
.alert {
  padding: 14px 18px;
  border-radius: 14px;
  margin-bottom: 18px;
  font-weight: 600;
  border: 1px solid transparent;
}
.alert-success { background: var(--success-soft); color: var(--success); }
.alert-danger  { background: var(--danger-soft);  color: var(--danger); }
.alert-warning { background: var(--warning-soft); color: var(--warning); }

/* ----- Key / Code boxes ----- */
.key-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #0f1a2e;
  border-radius: 14px;
  padding: 8px 8px 8px 18px;
  color: #fff;
}
.key-text {
  font: 13px/1.5 'JetBrains Mono', 'Fira Code', monospace;
  word-break: break-all;
  flex: 1;
}
.code-block {
  background: #0b1424;
  color: #d4e0ff;
  border-radius: 14px;
  padding: 16px 20px;
  overflow: auto;
  font: 13px/1.7 'JetBrains Mono', monospace;
}
.help-text { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* ----- Utilities ----- */
.flex { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.flex-gap { display: flex; flex-wrap: wrap; gap: 10px; }
.text-dim, .muted { color: var(--muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-2 { margin-top: 16px; }
.mb-2 { margin-bottom: 16px; }

/* ----- Mobile Toggle (button itself) ----- */
.mobile-toggle {
  display: none; /* hidden on desktop */
}

/* ----- Responsive adjustments ----- */
@media (max-width: 900px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .card { padding: 18px; }
  .stat-card { padding: 16px; }
  .stat-card .value { font-size: 22px; }
  .table-wrap table { min-width: 600px; }
  .key-box { flex-wrap: wrap; }
  .key-text { font-size: 12px; }

  /* Show the toggle button on mobile */
  .mobile-toggle {
    display: inline-flex !important;
    position: fixed;
    right: 14px;
    top: 14px;
    z-index: 60;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    font-size: 20px;
    align-items: center;
    justify-content: center;
    color: var(--ink);
    box-shadow: var(--shadow);
    cursor: pointer;
  }
}
/* ============================================================
   GLOBAL FIX – ensure all buttons, inputs, selects are styled
   ============================================================ */

/* Buttons – force visibility */
.btn, a.btn, button.btn, input[type="submit"] {
    display: inline-block;
    padding: 10px 18px;
    background: #2a6df4;
    color: #fff !important;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}
.btn:hover, a.btn:hover, button.btn:hover {
    background: #1a5ad0;
    transform: translateY(-1px);
}
.btn-primary { background: #2a6df4; }
.btn-success { background: #0faf7a; }
.btn-danger { background: #e84c5e; }
.btn-warning { background: #e5a03a; }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* Forms – inputs, selects, textareas */
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #d0d7de;
    border-radius: 8px;
    background: #fff;
    color: #0f1a2e;
    font-size: 14px;
    transition: border 0.2s, box-shadow 0.2s;
    outline: none;
    box-sizing: border-box;
}
input:focus, select:focus, textarea:focus {
    border-color: #2a6df4;
    box-shadow: 0 0 0 3px rgba(42,109,244,0.2);
}

/* Labels */
label {
    display: block;
    margin: 14px 0 6px;
    font-weight: 600;
    font-size: 14px;
    color: #0f1a2e;
}

/* Cards – already defined in core.css, but ensure they have padding */
.card {
    padding: 20px 24px;
    background: var(--surface, #fff);
    border-radius: var(--radius, 16px);
    box-shadow: var(--shadow, 0 4px 12px rgba(0,0,0,0.05));
    margin-bottom: 20px;
}

/* Table action column – center buttons */
.table-wrap td .btn,
.table-wrap td a.btn {
    margin: 0 2px;
}

/* Alerts – ensure text is visible */
.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-weight: 600;
}
.alert-success { background: #e6f7f0; color: #0faf7a; border: 1px solid #b8e6d4; }
.alert-danger { background: #fde8e8; color: #e84c5e; border: 1px solid #f5c2c2; }
.alert-warning { background: #fef5e6; color: #e5a03a; border: 1px solid #f7ddb3; }
.alert-neutral { background: #f0f2f5; color: #6b7a8f; border: 1px solid #d0d7de; }
/* ============================================================
   PRELOADER – full-screen loading animation
   ============================================================ */
#preloader {
    position: fixed;
    inset: 0;
    background: var(--bg, #f0f4f8);
    z-index: 99999;               /* highest */
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease;
    opacity: 1;
    pointer-events: all;
}
#preloader.hide {
    opacity: 0;
    pointer-events: none;
}

.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--line, #d0d7de);
    border-top-color: var(--primary, #2a6df4);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Dark mode support */
html.dark #preloader {
    background: var(--bg, #0b1424);
}