/*
  style.css — Millelire al Mese
  Mobile-first, palette: verde risparmio + oro moneta + crema neutro.
*/

:root {
  --color-green: #2E6E4E;
  --color-green-dark: #1F4E38;
  --color-gold: #D4A017;
  --color-gold-dark: #B8860B;
  --color-cream: #FAF7F0;
  --color-white: #FFFFFF;
  --color-text: #23302A;
  --color-text-muted: #6B7A73;
  --color-border: #E3DDCC;
  --color-danger: #B3261E;
  --color-danger-bg: #FBEAEA;

  --radius: 12px;
  --shadow: 0 2px 8px rgba(35, 48, 42, 0.08);
  --max-width: 480px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--color-cream);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* --- Layout generale, mobile-first --- */
.app-header,
.app-main,
.app-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px;
}

/* --- Banner errore --- */
.error-banner {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  text-align: center;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
}

.hidden {
  display: none !important;
}

/* --- Header --- */
.app-header {
  background: linear-gradient(180deg, var(--color-green) 0%, var(--color-green-dark) 100%);
  border-radius: 0 0 20px 20px;
  color: var(--color-white);
  padding-top: 24px;
  padding-bottom: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.brand-logo {
  height: 56px;
  width: auto;
  display: block;
}

.balance-card {
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  margin-bottom: 16px;
}

.balance-label {
  font-size: 0.85rem;
  opacity: 0.9;
}

.balance-value {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-gold);
}

.balance-hint {
  font-size: 0.75rem;
  opacity: 0.8;
}

/* --- Bottoni --- */
.btn {
  display: block;
  width: 100%;
  border: none;
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.05s ease-in-out, opacity 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-green-dark);
  box-shadow: 0 4px 12px rgba(212, 160, 23, 0.35);
}

.btn-primary:hover {
  background-color: var(--color-gold-dark);
  box-shadow: 0 6px 16px rgba(212, 160, 23, 0.45);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-green);
  border: 2px solid var(--color-green);
}

.btn-secondary:hover {
  background-color: var(--color-cream);
}

/* --- Sezioni --- */
.section {
  background-color: var(--color-white);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.section h2 {
  font-size: 1.05rem;
  margin: 0 0 12px 0;
  color: var(--color-green-dark);
}

.section-primary {
  border: 2px solid var(--color-gold);
}

.section-hint {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: -4px;
  margin-bottom: 12px;
}

/* --- Liste generiche (esercenti / storico) --- */
.merchants-list,
.history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.loading,
.empty {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 12px 0;
}

/* --- Card esercente --- */
.merchant-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  gap: 8px;
}

.merchant-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.merchant-name {
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.merchant-category {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: capitalize;
}

.merchant-cashback {
  flex-shrink: 0;
  background-color: var(--color-green);
  color: var(--color-white);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 999px;
}

/* --- Righe storico --- */
.history-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
}

.history-row:last-child {
  border-bottom: none;
}

.history-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.history-merchant {
  font-weight: 600;
  font-size: 0.9rem;
}

.history-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.history-amount {
  font-weight: 700;
  font-size: 0.95rem;
}

.amount-credit {
  color: var(--color-green);
}

.amount-debit {
  color: var(--color-danger);
}

.referral-link {
  display: block;
  word-break: break-all;
  background: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px;
  font-size: 0.85rem;
  color: var(--color-green-dark);
  margin-bottom: 10px;
  text-decoration: none;
}

/* --- Tab login/registrazione --- */
.auth-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  background: var(--color-cream);
  border-radius: var(--radius);
  padding: 4px;
}

.auth-tab {
  flex: 1;
  padding: 10px;
  border: none;
  background: none;
  border-radius: 8px;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
}

.auth-tab.is-active {
  background: var(--color-white);
  color: var(--color-green-dark);
  box-shadow: var(--shadow);
}

/* --- Form upload scontrino --- */
.receipt-upload-wrapper {
  margin-top: 14px;
}

.receipt-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.receipt-form label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.receipt-form input[type="text"],
.receipt-form input[type="email"],
.receipt-form input[type="password"],
.receipt-form input[type="file"] {
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: 10px;
  font-size: 0.95rem;
  background-color: var(--color-cream);
  color: var(--color-text);
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, background-color 0.15s ease-in-out;
}

.receipt-form input[type="text"]:focus,
.receipt-form input[type="email"]:focus,
.receipt-form input[type="password"]:focus {
  outline: none;
  border-color: var(--color-green);
  box-shadow: 0 0 0 3px rgba(46, 110, 78, 0.15);
  background-color: var(--color-white);
}

.receipt-form .btn {
  margin-top: 6px;
}

.receipt-form .btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --- Fotocamera in-app per lo scontrino --- */
.camera-wrapper {
  background-color: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px;
}

.camera-video,
.camera-preview {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: 8px;
  background-color: #000;
  display: block;
}

.camera-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.camera-actions .btn {
  margin-top: 0;
  flex: 1;
}

.feedback {
  font-size: 0.85rem;
  min-height: 1.2em;
  margin: 4px 0 0 0;
}

.feedback-success {
  color: var(--color-green);
  font-weight: 700;
}

.feedback-error {
  color: var(--color-danger);
  font-weight: 700;
}

/* --- Footer --- */
.app-footer {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  padding-bottom: 32px;
}

.footer-secondary {
  margin-top: 8px;
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
}

/* --- Adattamento per schermi più larghi (tablet/desktop) --- */
@media (min-width: 600px) {
  .app-header,
  .app-main,
  .app-footer {
    padding-left: 24px;
    padding-right: 24px;
  }

  .balance-value {
    font-size: 2.8rem;
  }
}