/* VPN Manager v2 — Premium Dark Design */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ─── VARIABLES ─────────────────────────────────────────────────────────────── */
:root {
  --bg:          #0d1117;
  --bg2:         #161b22;
  --bg3:         #21262d;
  --border:      rgba(255,255,255,0.08);
  --border2:     rgba(255,255,255,0.14);
  --text:        #e6edf3;
  --text-muted:  #8b949e;
  --accent:      #1f6feb;
  --accent-h:    #388bfd;
  --green:       #3fb950;
  --green-dark:  #1a7f37;
  --red:         #da3633;
  --orange:      #d29922;
  --purple:      #8957e5;
  --blue-light:  #58a6ff;
  --sidebar-w:   260px;
  --radius:      10px;
  --shadow:      0 8px 32px rgba(0,0,0,0.4);
  --glass-bg:    rgba(22, 27, 34, 0.82);
  --glass-border: rgba(255, 255, 255, 0.08);
}

.light-theme {
  --bg:          #f6f8fa;
  --bg2:         #ffffff;
  --bg3:         #ffffff;
  --border:      #d0d7de;
  --border2:     #d8dee4;
  --text:        #1f2328;
  --text-muted:  #656d76;
  --accent:      #0969da;
  --accent-h:    #0a5dc2;
  --green:       #1a7f37;
  --green-dark:  #116329;
  --red:         #cf222e;
  --orange:      #9a6700;
  --purple:      #8250df;
  --blue-light:  #0969da;
  --shadow:      0 4px 12px rgba(0,0,0,0.08);
}

/* ─── GLOBAL ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); font-size: 14px; transition: background 0.3s, color 0.3s; }
a { color: var(--blue-light); text-decoration: none; }
code, .ip-code { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--blue-light); background: rgba(88,166,255,0.1); padding: 1px 6px; border-radius: 4px; }
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--red); }
small { font-size: 12px; }

/* ─── LAYOUT ─────────────────────────────────────────────────────────────────── */
.app-layout { display: flex; height: 100vh; overflow: hidden; }

/* ─── SIDEBAR ────────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  z-index: 100;
}
.sidebar-header { padding: 20px 18px 12px; border-bottom: 1px solid var(--border); }
.sidebar-logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 22px; }
.logo-text { font-weight: 700; font-size: 17px; color: var(--text); letter-spacing: 0.3px; }
.logo-version { font-size: 10px; background: var(--accent); color: #fff; border-radius: 4px; padding: 1px 6px; margin-left: 4px; }

.admin-badge { display: flex; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.admin-avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--purple)); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; flex-shrink: 0; }
.admin-name { font-weight: 600; font-size: 13px; }
.admin-role { font-size: 11px; color: var(--text-muted); }

.router-select-wrap { padding: 14px 18px; border-bottom: 1px solid var(--border); }
.sidebar-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-muted); margin-bottom: 8px; }
.router-select { width: 100%; background: var(--bg3); border: 1px solid var(--border2); color: var(--text); border-radius: 7px; padding: 8px 10px; font-size: 13px; cursor: pointer; }
.router-select:focus { outline: none; border-color: var(--accent); }

.sidebar-nav { flex: 1; padding: 14px 12px; display: flex; flex-direction: column; gap: 4px; overflow-y: auto; }
.nav-divider { margin: 8px 0 4px; }
.nav-sep { height: 1px; background: var(--border); margin: 8px 0; }

.nav-btn {
  display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 12px;
  border-radius: 8px; border: none; background: transparent; color: var(--text);
  font-size: 13px; cursor: pointer; transition: background 0.15s, color 0.15s; text-align: left;
}
.nav-btn:hover { background: rgba(255,255,255,0.06); }
.nav-btn.accent { background: var(--accent); color: #fff; font-weight: 600; }
.nav-btn.accent:hover { background: var(--accent-h); }
.nav-btn.ghost { color: var(--text-muted); }
.nav-btn.ghost:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-btn.purple { background: rgba(137,87,229,0.15); color: var(--purple); }
.nav-btn.purple:hover { background: rgba(137,87,229,0.25); }
.nav-btn.green { background: rgba(63,185,80,0.12); color: var(--green); }
.nav-btn.green:hover { background: rgba(63,185,80,0.2); }

.sidebar-footer { padding: 14px 12px; border-top: 1px solid var(--border); }
.btn-logout { display: block; width: 100%; padding: 9px 14px; background: rgba(218,54,51,0.1); color: var(--red); border-radius: 8px; text-align: center; font-size: 13px; font-weight: 500; transition: background 0.15s; }
.btn-logout:hover { background: rgba(218,54,51,0.2); }

/* ─── MAIN ───────────────────────────────────────────────────────────────────── */
.main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

/* ─── TOPBAR ─────────────────────────────────────────────────────────────────── */
.topbar { padding: 14px 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--border); background: var(--bg2); flex-wrap: wrap; gap: 10px; }
.hamburger { display: none; background: none; border: none; color: var(--text); font-size: 22px; cursor: pointer; padding: 4px 8px; }
.search-wrap { position: relative; flex: 1; min-width: 200px; max-width: 380px; }
.search-icon { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); font-size: 14px; }
.search-input { width: 100%; background: var(--bg3); border: 1px solid var(--border2); color: var(--text); border-radius: 8px; padding: 8px 12px 8px 34px; font-size: 13px; }
.search-input:focus { outline: none; border-color: var(--accent); }
.topbar-stats { display: flex; gap: 8px; flex-wrap: wrap; }

/* ─── STATUS FILTERS ─────────────────────────────────────────────────────────── */
.filter-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.status-filter-btn { padding: 5px 12px; border-radius: 20px; border: 1px solid var(--border2); background: transparent; color: var(--text-muted); font-size: 12px; cursor: pointer; transition: all 0.15s; }
.status-filter-btn:hover, .status-filter-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ─── LOGIN PAGE (PREMIUM) ─────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top right, #1a1f2b, #0d1117);
  padding: 20px;
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
  animation: fadeInDown 0.6s ease-out;
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
.login-logo { text-align: center; margin-bottom: 30px; }
.login-logo .logo-icon {
  font-size: 52px; display: block; margin-bottom: 12px;
  filter: drop-shadow(0 0 10px var(--blue-light));
}
.login-logo h1 {
  font-size: 30px; font-weight: 700;
  background: linear-gradient(90deg, #fff, var(--blue-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}
.login-logo p { color: var(--text-muted); font-size: 14px; }
.login-card .form-group label {
  font-size: 13px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 8px; color: var(--text-muted);
}
.login-card input {
  background: rgba(0,0,0,0.2) !important;
  border-radius: 10px; padding: 12px 16px; font-size: 16px; transition: all 0.3s;
}
.login-card input:focus {
  background: rgba(0,0,0,0.3) !important;
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}
.login-error {
  background: rgba(218, 54, 51, 0.1); color: var(--red);
  padding: 12px; border-radius: 10px; font-size: 14px;
  margin-bottom: 20px; display: none; text-align: center;
  border: 1px solid rgba(218, 54, 51, 0.2);
}

/* ─── TABLE AREA ─────────────────────────────────────────────────────────────── */
.table-toolbar { display: flex; align-items: center; justify-content: space-between; padding: 12px 20px; gap: 10px; flex-wrap: wrap; }
.bulk-actions { display: flex; gap: 6px; }
.table-wrap { flex: 1; overflow: auto; padding: 0 20px 20px; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { background: var(--bg3); color: var(--text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px; padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
.data-table td { padding: 11px 12px; border-bottom: 1px solid rgba(255,255,255,0.04); vertical-align: middle; }
.data-table tbody tr { transition: background 0.1s; }
.data-table tbody tr:hover { background: rgba(255,255,255,0.025); }
.data-table .row-blocked td { opacity: 0.55; }
.empty-row { text-align: center; color: var(--text-muted); padding: 40px; }
.actions-col { white-space: nowrap; }
.action-btns { display: flex; gap: 4px; }

/* ─── PAGINATION ─────────────────────────────────────────────────────────────── */
#pagination { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 12px 0; }
.page-btn { padding: 6px 16px; background: var(--bg3); border: 1px solid var(--border2); color: var(--text); border-radius: 7px; cursor: pointer; font-size: 13px; transition: background 0.15s; }
.page-btn:hover { background: var(--accent); border-color: var(--accent); }
.page-info { font-size: 12px; color: var(--text-muted); }

/* ─── BADGES ─────────────────────────────────────────────────────────────────── */
.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.stat-badge { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: 20px; font-size: 12px; background: rgba(255,255,255,0.06); color: var(--text-muted); }
.stat-badge.green { background: rgba(63,185,80,0.1); color: var(--green); }
.stat-badge.red { background: rgba(218,54,51,0.1); color: var(--red); }
.badge-green { background: rgba(63,185,80,0.1); color: var(--green); }
.badge-red { background: rgba(218,54,51,0.1); color: var(--red); }
.badge-gray { background: rgba(255,255,255,0.07); color: var(--text-muted); }
.badge-purple { background: rgba(137,87,229,0.15); color: var(--purple); }
.badge-blue { background: rgba(88,166,255,0.1); color: var(--blue-light); }

/* ─── BUTTONS ────────────────────────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 7px; border: none; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.15s; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-h); }
.btn-success { background: var(--green-dark); color: #fff; }
.btn-success:hover:not(:disabled) { background: var(--green); }
.btn-danger { background: rgba(218,54,51,0.15); color: var(--red); border: 1px solid rgba(218,54,51,0.25); }
.btn-danger:hover:not(:disabled) { background: var(--red); color: #fff; }
.btn-secondary { background: var(--bg3); color: var(--text); border: 1px solid var(--border2); }
.btn-secondary:hover:not(:disabled) { background: rgba(255,255,255,0.1); }
.btn-muted { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-muted:hover { background: rgba(255,255,255,0.05); }
.btn-sm { padding: 5px 11px; font-size: 12px; }
.btn-icon { background: rgba(255,255,255,0.05); border: 1px solid transparent; color: var(--text-muted); border-radius: 6px; padding: 5px 7px; font-size: 13px; cursor: pointer; transition: all 0.15s; }
.btn-icon:hover { background: rgba(255,255,255,0.1); color: var(--text); border-color: var(--border2); }
.btn-danger-sm { background: rgba(218,54,51,0.1); color: var(--red); }
.btn-danger-sm:hover { background: rgba(218,54,51,0.2); }
.btn-warn-sm { background: rgba(210,153,34,0.1); color: var(--orange); }
.btn-success-sm { background: rgba(63,185,80,0.1); color: var(--green); }
.toolbar { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; align-items: center; }

/* ─── MODALS ─────────────────────────────────────────────────────────────────── */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.65); backdrop-filter: blur(4px); z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; pointer-events: none; transition: opacity 0.2s; }
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal { background: var(--bg2); border: 1px solid var(--border2); border-radius: 14px; box-shadow: var(--shadow); display: flex; flex-direction: column; width: 100%; max-height: 90vh; transform: translateY(10px); transition: transform 0.2s; }
.modal-overlay.active .modal { transform: translateY(0); }
.modal-sm { max-width: 420px; }
.modal-md { max-width: 580px; }
.modal-lg { max-width: 780px; }
.modal-xl { max-width: 960px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 18px; padding: 2px 6px; border-radius: 5px; transition: color 0.15s, background 0.15s; }
.modal-close:hover { color: var(--text); background: rgba(255,255,255,0.07); }
.modal-body { padding: 20px 22px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 14px 22px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; flex-shrink: 0; }

/* ─── FORMS ──────────────────────────────────────────────────────────────────── */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width:500px) { .form-row { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-group label, label { font-size: 12px; font-weight: 500; color: var(--text-muted); }
input[type="text"], input[type="password"], input[type="email"], textarea, select {
  background: var(--bg3); border: 1px solid var(--border2); color: var(--text);
  border-radius: 8px; padding: 9px 12px; font-size: 13px; font-family: inherit;
  transition: border-color 0.15s;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }
input[readonly], .readonly-field { color: var(--text-muted); cursor: default; }
textarea { resize: vertical; min-height: 70px; }
.form-error { color: var(--red); font-size: 12px; min-height: 16px; margin-top: 4px; }
.form-select { width: 100%; }
.checkbox-section { margin: 10px 0; }
.checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 13px; color: var(--text); }
.checkbox-wrap { display: inline-flex; align-items: center; }
input[type="checkbox"] { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }
.group-checkboxes { display: flex; flex-wrap: wrap; gap: 8px; }
.radio-group { display: flex; gap: 16px; flex-wrap: wrap; }
.radio-label { display: flex; align-items: center; gap: 6px; cursor: pointer; font-size: 13px; color: var(--text); }
input[type="radio"] { accent-color: var(--accent); }
.routing-fields { background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: 8px; padding: 14px; margin: 8px 0; display: none; }
.show-pass-inline { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 14px; padding: 2px; }

/* ─── QR MODAL ───────────────────────────────────────────────────────────────── */
.qr-body { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-config-col { flex: 1.4; min-width: 220px; display: flex; flex-direction: column; gap: 10px; }
.qr-image-col { flex: 1; min-width: 180px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.config-textarea { width: 100%; height: 220px; font-family: 'JetBrains Mono', monospace; font-size: 11.5px; resize: vertical; }
.qr-box { background: #fff; border-radius: 10px; padding: 12px; display: flex; align-items: center; justify-content: center; }
.qr-box img { max-width: 190px; max-height: 190px; }
.label-sm { font-size: 12px; color: var(--text-muted); }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

/* ─── SPINNER ────────────────────────────────────────────────────────────────── */
.spinner-sm { display: inline-block; width: 14px; height: 14px; border: 2px solid rgba(255,255,255,0.2); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── TOAST ──────────────────────────────────────────────────────────────────── */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--bg3); border: 1px solid var(--border2); color: var(--text); padding: 12px 22px; border-radius: 10px; font-size: 13px; box-shadow: var(--shadow); opacity: 0; transition: opacity 0.25s, transform 0.25s; pointer-events: none; z-index: 9999; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { border-color: rgba(218,54,51,0.5); color: var(--red); }

/* ─── LOGIN PAGE ─────────────────────────────────────────────────────────────── */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); background-image: radial-gradient(ellipse at 30% 20%, rgba(31,111,235,0.12), transparent 50%), radial-gradient(ellipse at 80% 80%, rgba(137,87,229,0.08), transparent 50%); }
.login-card { background: var(--bg2); border: 1px solid var(--border2); border-radius: 18px; padding: 40px 36px; width: 100%; max-width: 400px; box-shadow: var(--shadow); animation: slideUp 0.4s ease; }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo .logo-icon { font-size: 42px; display: block; margin-bottom: 8px; }
.login-logo h1 { font-size: 22px; font-weight: 700; }
.login-logo p { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.login-error { background: rgba(218,54,51,0.1); border: 1px solid rgba(218,54,51,0.3); color: var(--red); border-radius: 8px; padding: 10px 14px; font-size: 13px; display: none; margin-bottom: 14px; }

/* ─── PROFILE PAGE ───────────────────────────────────────────────────────────── */
.profile-wrap { max-width: 560px; margin: 32px auto; padding: 0 20px; }
.profile-card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; margin-bottom: 20px; }
.profile-card h3 { font-size: 15px; margin-bottom: 18px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.profile-row { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.profile-row:last-child { border: none; }
.profile-key { color: var(--text-muted); min-width: 130px; font-weight: 500; }

/* ─── PERMS GRID ─────────────────────────────────────────────────────────────── */
.perms-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
@media (max-width:480px) { .perms-grid { grid-template-columns: 1fr; } }

/* ─── SIDEBAR OVERLAY (mobile) ───────────────────────────────────────────────── */
#sidebarOverlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 99; }
#sidebarOverlay.active { display: block; }

/* ─── MOBILE RESPONSIVE ──────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --sidebar-w: 240px; }
  .sidebar { position: fixed; top: 0; left: 0; height: 100%; transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow); }
  .hamburger { display: block; }
  .dashboard-cards { grid-template-columns: 1fr 1fr; padding: 12px 12px 0; gap: 8px; }
  .dash-value { font-size: 20px; }
  .table-wrap { padding: 0 10px 16px; }
  .topbar { padding: 10px 12px; flex-direction: column; align-items: stretch; }
  .search-wrap { max-width: none; }
  .topbar-stats { justify-content: space-between; font-size: 11px; }
  .data-table th, .data-table td { padding: 8px 6px; font-size: 13px; }
  
  /* Hide less important columns on mobile */
  .data-table th:nth-child(2), .data-table td:nth-child(2), /* ID */
  .data-table th:nth-child(6), .data-table td:nth-child(6), /* Access */
  .data-table th:nth-child(7), .data-table td:nth-child(7), /* Note */
  .data-table th:nth-child(8), .data-table td:nth-child(8)  /* Created */
  { display: none; }
  
  .action-btns { flex-direction: row; gap: 2px; }
  .btn-icon { padding: 4px 6px; }
}

@media (max-width: 480px) {
  .dashboard-cards { grid-template-columns: 1fr; }
  .modal { margin: 10px; max-height: 95vh; }
  .form-row { grid-template-columns: 1fr; }
  .modal-header, .modal-body, .modal-footer { padding: 12px 16px; }
  .qr-body { flex-direction: column; }
}