/* ================================================
   DESIGN TOKENS
   ================================================ */
:root {
  --color-bg:           #172026;
  --color-surface:      #1E282F;
  --color-accent:       #3CB44B;
  --color-text:         #E0E0E0;
  --color-text-muted:   rgba(224, 224, 224, 0.5);
  --color-border:       rgba(60, 180, 75, 0.2);
  --color-border-accent:rgba(60, 180, 75, 0.6);
  --font-main:          'Ubuntu', sans-serif;

  --color-danger:  #ef4444;
  --radius:        12px;
  --radius-sm:     8px;
  --nav-h:         60px;
  --max-w:         480px;
}

/* ================================================
   RESET
   ================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

/* ================================================
   FORMS (shared)
   ================================================ */
form { display: flex; flex-direction: column; gap: 12px; }

label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

input, select {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s;
  -webkit-appearance: none;
}

input::placeholder { color: var(--color-text-muted); }

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { -webkit-appearance: none; }
input[type=number] { -moz-appearance: textfield; }
input:focus, select:focus { border-color: var(--color-border-accent); }
select option { background: var(--color-surface); }

button[type="submit"] {
  width: 100%;
  padding: 14px;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: opacity 0.15s;
}

button[type="submit"]:hover { opacity: 0.88; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.form-error {
  font-size: 0.85rem;
  color: var(--color-danger);
  text-align: center;
}

/* ================================================
   LOGIN PAGE
   ================================================ */
.login-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: 32px 24px;
}

.login-logo {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -3px;
}

.login-tagline {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 6px;
  margin-bottom: 52px;
}

.login-form {
  width: 100%;
  max-width: 360px;
}

/* ================================================
   APP LAYOUT
   ================================================ */
.app-page {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  overflow: hidden;
}

.app-header {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  gap: 12px;
}

.app-header__title {
  flex: 1;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.3px;
}

.app-header__user {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color 0.15s;
}

.app-header__user:hover {
  color: var(--color-accent);
}

.app-main {
  flex: 1;
  overflow-y: auto;
  padding: 20px 16px;
  padding-bottom: calc(var(--nav-h) + env(safe-area-inset-bottom) + 16px);
}

.app-main > div {
  max-width: var(--max-w);
  margin: 0 auto;
}

.screen-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 20px;
}

/* ================================================
   BOTTOM NAVIGATION
   ================================================ */
.app-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  height: calc(var(--nav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  z-index: 100;
}

.nav__btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-family: var(--font-main);
  font-size: 0.67rem;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s;
  padding: 8px 4px;
  letter-spacing: 0.02em;
}

.nav__btn svg { width: 22px; height: 22px; }
.nav__btn--active { color: var(--color-accent); }

/* ================================================
   TAB SWITCHER
   ================================================ */
.transfer-tabs {
  display: flex;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 3px;
  margin-bottom: 20px;
}

.tab-btn {
  flex: 1;
  padding: 8px 12px;
  background: none;
  border: none;
  border-radius: calc(var(--radius-sm) - 2px);
  color: var(--color-text-muted);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.tab-btn--active {
  background: var(--color-accent);
  color: #fff;
}

/* ================================================
   SCREEN: BALANCE
   ================================================ */
.balance-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 4px;
}

.balance-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
}

.balance-card__name {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.balance-card__amount {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
}

.balance-card__amount--negative { color: var(--color-danger); }

.balance-updated-at {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin-top: 8px;
  min-height: 1em;
}

.balance-updated-at.loading::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--color-text-muted);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 6px;
  vertical-align: middle;
}

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

/* ================================================
   SCREEN: PROFILE
   ================================================ */
.profile-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 8px auto 16px;
}

.profile-name {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.profile-role {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0;
  margin-bottom: 36px;
}

.btn-danger {
  width: 100%;
  padding: 14px;
  background: transparent;
  color: var(--color-danger);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.btn-danger:hover { background: var(--color-danger); color: #fff; }

.crm-section {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.section-label {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

#crm-btn {
  width: 100%;
  padding: 12px;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-main);
  font-size: 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

#crm-btn:hover { border-color: var(--color-border-accent); color: var(--color-text); }

/* ================================================
   TOAST
   ================================================ */
.toast {
  position: fixed;
  bottom: calc(var(--nav-h) + env(safe-area-inset-bottom) + 12px);
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: #fff;
  z-index: 1000;
  animation: toast-in 0.2s ease;
  white-space: nowrap;
  max-width: calc(var(--max-w) - 32px);
}

.toast--success { background: var(--color-accent); }
.toast--error   { background: var(--color-danger); }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}