/* ============================================
   CALL FORWARDING — CONTROL PANEL AESTHETIC
   Industrial switchboard meets modern mobile
   ============================================ */

:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-raised: #263348;
  --border: #334155;
  --border-focus: #64748b;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --brand-blue: #5b7cfa;
  --brand-blue-glow: rgba(91, 124, 250, 0.25);
  --brand-blue-dim: #293a88;
  --brand-red: #e32529;
  --brand-red-glow: rgba(227, 37, 41, 0.25);
  --brand-red-dim: #8b1518;
  --red: #ef4444;
  --red-glow: rgba(239, 68, 68, 0.2);

  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --transition: 200ms ease;
  --transition-slow: 400ms ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle grid texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(148, 163, 184, 0.03) 1px, transparent 0);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

/* ============ SCREENS ============ */
.screen {
  display: none;
  min-height: 100dvh;
  position: relative;
  z-index: 1;
}
.screen.active {
  display: flex;
}

/* ============ PIN SCREEN ============ */
#pin-screen {
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.pin-container {
  width: 100%;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.pin-logo {
  color: var(--text-dim);
  margin-bottom: 8px;
  opacity: 0;
  animation: fadeInDown 600ms ease 100ms forwards;
}

.pin-title {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  opacity: 0;
  animation: fadeInDown 600ms ease 200ms forwards;
}

.pin-brand {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
  opacity: 0;
  animation: fadeInDown 600ms ease 250ms forwards;
}

.pin-subtitle {
  font-size: 0.8125rem;
  color: var(--text-dim);
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeInDown 600ms ease 350ms forwards;
}

.pin-input-group {
  width: 100%;
  opacity: 0;
  animation: fadeInDown 600ms ease 400ms forwards;
}

#pin-input {
  width: 100%;
  height: 64px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.1em;
  padding: 0 16px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  caret-color: var(--brand-blue);
}

#pin-input::placeholder {
  color: var(--text-dim);
  letter-spacing: 0;
  font-size: 0.875rem;
  font-family: var(--font-body);
}

#pin-input:focus {
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 4px var(--brand-blue-glow);
}

.pin-error {
  font-size: 0.8125rem;
  color: var(--red);
  text-align: center;
  min-height: 28px;
  padding-top: 8px;
  font-weight: 500;
}

.btn-unlock {
  width: 100%;
  height: 56px;
  background: var(--brand-red);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  opacity: 0;
  animation: fadeInDown 600ms ease 500ms forwards;
}

.btn-unlock:active {
  transform: scale(0.97);
}

.btn-unlock:hover {
  background: #c91f23;
  box-shadow: 0 4px 20px var(--brand-red-glow);
}

.btn-unlock.loading .btn-unlock-text { opacity: 0; }
.btn-unlock.loading .btn-unlock-loader { opacity: 1; }

.btn-unlock-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-unlock-loader::after {
  content: '';
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 600ms linear infinite;
}

/* Shake animation for wrong PIN */
.shake {
  animation: shake 500ms ease;
}

/* ============ DASHBOARD ============ */
#dashboard-screen {
  flex-direction: column;
  align-items: center;
  padding: 0;
}

.dash-container {
  width: 100%;
  max-width: 480px;
  padding: 0 16px 32px;
}

/* Header */
.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.dash-header-title {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.dash-header-sep {
  color: var(--text-dim);
  margin: 0 2px;
}

.btn-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-icon:hover {
  border-color: var(--text-dim);
  color: var(--text);
  background: var(--surface);
}

/* Status Banner */
.status-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  transition: background var(--transition-slow), border-color var(--transition-slow);
  border: 1.5px solid transparent;
}

.status-banner.mode-office {
  background: linear-gradient(135deg, rgba(91, 124, 250, 0.08), rgba(91, 124, 250, 0.03));
  border-color: rgba(91, 124, 250, 0.2);
}

.status-banner.mode-forward {
  background: linear-gradient(135deg, rgba(227, 37, 41, 0.08), rgba(227, 37, 41, 0.03));
  border-color: rgba(227, 37, 41, 0.2);
}

.status-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background var(--transition-slow), box-shadow var(--transition-slow);
}

.mode-office .status-indicator {
  background: var(--brand-blue);
  box-shadow: 0 0 8px var(--brand-blue-glow);
}

.mode-forward .status-indicator {
  background: var(--brand-red);
  box-shadow: 0 0 8px var(--brand-red-glow);
  animation: pulse-red 2s ease-in-out infinite;
}

.status-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.status-mode {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: color var(--transition-slow);
}

.mode-office .status-mode { color: var(--brand-blue); }
.mode-forward .status-mode { color: var(--brand-red); }

.status-detail {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Mode Toggle */
.toggle-section {
  margin-bottom: 32px;
}

.toggle-labels {
  display: flex;
  justify-content: space-between;
  padding: 0 8px;
  margin-bottom: 10px;
}

.toggle-label-left,
.toggle-label-right {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  transition: color var(--transition);
}

.toggle-label-left.active { color: var(--brand-blue); }
.toggle-label-right.active { color: var(--brand-red); }

.toggle-track {
  width: 100%;
  height: 80px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-pill);
  position: relative;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  overflow: hidden;
}

.toggle-track:focus-visible {
  outline: 2px solid var(--brand-blue);
  outline-offset: 2px;
}

.toggle-track[aria-checked="false"] {
  border-color: rgba(91, 124, 250, 0.3);
}

.toggle-track[aria-checked="true"] {
  border-color: rgba(227, 37, 41, 0.3);
}

.toggle-thumb {
  position: absolute;
  top: 6px;
  left: 6px;
  width: calc(50% - 8px);
  height: calc(100% - 12px);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-slow) cubic-bezier(0.34, 1.56, 0.64, 1),
              background var(--transition-slow),
              box-shadow var(--transition-slow);
  z-index: 2;
}

.toggle-track[aria-checked="false"] .toggle-thumb {
  transform: translateX(0);
  background: var(--brand-blue);
  box-shadow: 0 2px 12px var(--brand-blue-glow);
}

.toggle-track[aria-checked="true"] .toggle-thumb {
  transform: translateX(100%) translateX(4px);
  background: var(--brand-red);
  box-shadow: 0 2px 12px var(--brand-red-glow);
}

.toggle-track-text {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  z-index: 1;
  transition: opacity var(--transition);
  pointer-events: none;
}

.toggle-track-text-left {
  left: calc(25% - 12px);
  color: #fff;
}

.toggle-track-text-right {
  right: calc(25% - 16px);
  color: #fff;
}

/* Hide the text on the inactive side */
.toggle-track[aria-checked="false"] .toggle-track-text-right { opacity: 0.3; color: var(--text-dim); }
.toggle-track[aria-checked="false"] .toggle-track-text-left { opacity: 1; }
.toggle-track[aria-checked="true"] .toggle-track-text-left { opacity: 0.3; color: var(--text-dim); }
.toggle-track[aria-checked="true"] .toggle-track-text-right { opacity: 1; }

.toggle-track.disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* ============ NUMBERS SECTION ============ */
.numbers-section {
  margin-top: 0;
}

.numbers-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.numbers-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.btn-add {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 14px 0 10px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-add:hover {
  border-color: var(--brand-blue);
  color: var(--brand-blue);
  background: rgba(91, 124, 250, 0.05);
}

/* Add Number Form */
.add-form {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  animation: slideDown 200ms ease;
}

.add-form[hidden] { display: none; }

.input-field {
  width: 100%;
  height: 48px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  padding: 0 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input-field::placeholder {
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.875rem;
}

.input-field:focus {
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px var(--brand-blue-glow);
}

.input-label {
  height: 42px;
  font-size: 0.875rem;
}

.add-form-actions {
  display: flex;
  gap: 8px;
  padding-top: 4px;
}

.btn-save,
.btn-cancel {
  flex: 1;
  height: 44px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-save {
  background: var(--brand-blue);
  color: #fff;
}
.btn-save:hover { background: #4a6ae0; }
.btn-save:active { transform: scale(0.97); }

.btn-cancel {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
}
.btn-cancel:hover {
  border-color: var(--text-dim);
  color: var(--text);
}

/* Number Cards */
.numbers-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.number-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 14px 14px 12px;
  transition: border-color var(--transition), opacity var(--transition);
  animation: slideDown 200ms ease;
}

.number-card.inactive {
  opacity: 0.5;
}

.number-card:hover {
  border-color: var(--border-focus);
}

/* Custom Checkbox */
.number-check {
  position: relative;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.number-check input {
  position: absolute;
  opacity: 0;
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: 1;
  margin: 0;
}

.number-check-box {
  width: 26px;
  height: 26px;
  border: 2px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  pointer-events: none;
}

.number-check input:checked + .number-check-box {
  background: var(--brand-blue);
  border-color: var(--brand-blue);
}

.number-check-box svg {
  opacity: 0;
  transform: scale(0.5);
  transition: all var(--transition);
}

.number-check input:checked + .number-check-box svg {
  opacity: 1;
  transform: scale(1);
}

.number-info {
  flex: 1;
  min-width: 0;
}

.number-phone {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}

.number-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 2px;
}

.btn-delete {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  flex-shrink: 0;
}

.btn-delete:hover {
  color: var(--red);
  background: var(--red-glow);
}

.numbers-empty {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.875rem;
  padding: 32px 0;
  font-style: italic;
}

.numbers-empty[hidden] { display: none; }

/* ============ CONFIRM MODAL ============ */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 24px;
  animation: fadeIn 150ms ease;
}

.confirm-overlay[hidden] { display: none; }

.confirm-dialog {
  width: 100%;
  max-width: 340px;
  background: var(--surface-raised);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  animation: scaleIn 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.confirm-message {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text);
  text-align: center;
  margin-bottom: 20px;
}

.confirm-actions {
  display: flex;
  gap: 10px;
}

.btn-confirm-yes,
.btn-confirm-no {
  flex: 1;
  height: 48px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

.btn-confirm-yes {
  background: var(--brand-blue);
  color: #fff;
}
.btn-confirm-yes:hover { background: #4a6ae0; }
.btn-confirm-yes.danger { background: var(--red); }
.btn-confirm-yes.danger:hover { background: #dc2626; }

.btn-confirm-no {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
}
.btn-confirm-no:hover {
  border-color: var(--text-dim);
  color: var(--text);
}

/* ============ TOASTS ============ */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: calc(100% - 32px);
  max-width: 420px;
  pointer-events: none;
}

.toast {
  background: var(--surface-raised);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: auto;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.toast.toast-exit {
  animation: toastOut 200ms ease forwards;
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.toast.success { border-color: rgba(91, 124, 250, 0.3); }
.toast.success .toast-icon { color: var(--brand-blue); }

.toast.error { border-color: rgba(239, 68, 68, 0.3); }
.toast.error .toast-icon { color: var(--red); }

.toast.warning { border-color: rgba(227, 37, 41, 0.3); }
.toast.warning .toast-icon { color: var(--brand-red); }

/* ============ ANIMATIONS ============ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 50%, 90% { transform: translateX(-6px); }
  30%, 70% { transform: translateX(6px); }
}

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

@keyframes pulse-red {
  0%, 100% { box-shadow: 0 0 8px var(--brand-red-glow); }
  50% { box-shadow: 0 0 16px var(--brand-red-glow), 0 0 24px rgba(227, 37, 41, 0.15); }
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toastOut {
  to {
    opacity: 0;
    transform: translateY(8px) scale(0.95);
  }
}

/* ============ SAFE AREA (notch phones) ============ */
@supports (padding-top: env(safe-area-inset-top)) {
  .dash-header {
    padding-top: calc(16px + env(safe-area-inset-top));
  }
  .toast-container {
    bottom: calc(24px + env(safe-area-inset-bottom));
  }
}