/* ==========================================================================
   TuAgenteVirtual SIP Bridge & SBC — Stylesheet
   ========================================================================== */

:root {
  --bg-main: #090d16;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(24, 34, 53, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(6, 182, 212, 0.3);

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.2);
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.2);
  --accent-rose: #f43f5e;
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
}

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

body {
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(at 0% 0%, rgba(6, 182, 212, 0.07) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.07) 0px, transparent 50%);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.app-layout {
  max-width: 1380px;
  margin: 0 auto;
  padding: 24px 28px;
}

/* ==========================================================================
   Header & Nav
   ========================================================================== */

.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 16px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, #0891b2, #4f46e5);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.35);
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge-sbc {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.brand-subtitle {
  color: var(--text-secondary);
  font-size: 13px;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 8px #10b981;
  animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.fqdn-badge {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  font-family: var(--font-body);
}

.btn-primary {
  background: linear-gradient(135deg, #06b6d4, #2563eb);
  color: #fff;
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-danger-sm {
  background: rgba(244, 63, 94, 0.15);
  color: #f87171;
  border: 1px solid rgba(244, 63, 94, 0.3);
  padding: 4px 10px;
  font-size: 11px;
}

.btn-danger-sm:hover {
  background: rgba(244, 63, 94, 0.3);
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-xs {
  padding: 3px 8px;
  font-size: 11px;
}

/* ==========================================================================
   Metrics Grid
   ========================================================================== */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.metric-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color 0.2s, transform 0.2s;
}

.metric-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-calls { background: rgba(6, 182, 212, 0.12); color: var(--accent-cyan); }
.icon-total { background: rgba(139, 92, 246, 0.12); color: var(--accent-purple); }
.icon-rtp { background: rgba(16, 185, 129, 0.12); color: var(--accent-emerald); }
.icon-stealth { background: rgba(245, 158, 11, 0.12); color: var(--accent-amber); }

.metric-info {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 4px;
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: #fff;
}

.stealth-active {
  font-size: 16px;
  color: #f59e0b;
}

/* ==========================================================================
   Card Component
   ========================================================================== */

.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-card);
  margin-bottom: 28px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 600;
  color: #fff;
}

.badge-count {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 12px;
}

/* ==========================================================================
   Table Component
   ========================================================================== */

.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
  vertical-align: middle;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.pill {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.pill-inbound {
  background: rgba(6, 182, 212, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.pill-outbound {
  background: rgba(139, 92, 246, 0.15);
  color: #c084fc;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.pill-state-active {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.pill-state-ringing {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.port-badge {
  font-family: var(--font-mono);
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 11px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 42px 20px;
  color: var(--text-muted);
}

.empty-state p {
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 12px;
  font-size: 14px;
}

.empty-state span {
  font-size: 12px;
  margin-top: 4px;
}

/* ==========================================================================
   Split Grid: Terminal Logs & Config
   ========================================================================== */

.split-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 20px;
}

@media (max-width: 960px) {
  .split-grid {
    grid-template-columns: 1fr;
  }
}

.terminal-container {
  background: #05070d;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 14px;
  height: 220px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.log-entry {
  color: #94a3b8;
  word-break: break-all;
}

.log-sys { color: #38bdf8; }
.log-recv { color: #4ade80; }
.log-warn { color: #fbbf24; }

.config-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.config-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 13px;
}

.config-key {
  color: var(--text-secondary);
}

.config-val {
  color: #fff;
  font-weight: 500;
}

.code-span {
  font-family: var(--font-mono);
  font-size: 11px;
  background: rgba(0, 0, 0, 0.4);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}

.modal-card {
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 480px;
  padding: 24px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 18px;
  color: #fff;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
}

.modal-close:hover { color: #fff; }

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group small {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-control {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px var(--accent-cyan-glow);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
}

/* ==========================================================================
   Admin Badge & Controls in Header
   ========================================================================== */

.admin-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  color: #38bdf8;
}

.admin-icon {
  font-size: 14px;
}

.admin-name {
  font-family: var(--font-mono);
  font-weight: 600;
}

.btn-danger-ghost {
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-danger-ghost:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: #ef4444;
  color: #fff;
}

/* ==========================================================================
   Superadmin Login Screen Overlay
   ========================================================================== */

.login-screen-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: radial-gradient(circle at center, #0e1526 0%, #05070e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(12px);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), 0 0 40px rgba(56, 189, 248, 0.1);
  animation: loginAppear 0.3s ease-out;
}

@keyframes loginAppear {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-shield-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px auto;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(99, 102, 241, 0.2));
  border: 1px solid rgba(56, 189, 248, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #38bdf8;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.login-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.login-subtitle {
  font-size: 13px;
  color: var(--text-muted);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.btn-block {
  width: 100%;
  justify-content: center;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  margin-top: 10px;
}

.alert-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
  text-align: center;
  animation: shake 0.3s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}