/* =========================================
   TrendsOn Sender — Estilos
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;900&display=swap');

/* ----- Tokens ----- */
:root {
  --color-primary: #e76066;
  --color-primary-light: #ef8f93;
  --color-primary-dark: #c94d52;
  --color-surface: #1a1a1a;
  --color-surface-raised: #222224;
  --color-background: #242426;
  --color-border: #333336;
  --color-text: #ffffff;
  --color-text-muted: #fbf7f2;
  --color-text-dim: #999999;
  --color-secondary: #fbf7f2;
  --color-success: #4caf7d;
  --color-error: #e76066;
  --color-warning: #f0a500;

  --font-family: 'Nunito', sans-serif;
  --radius-sm: 4px;
  --radius-md: 4px;
  --radius-lg: 4px;

  --transition: 180ms ease;
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--color-background);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ----- Utilitários ----- */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ----- Botões ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition), transform var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-light);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  font-weight: 600;
}

.btn-ghost:hover:not(:disabled) {
  color: var(--color-text);
  background: rgba(255,255,255,0.06);
}

.btn-sm {
  font-size: 0.8rem;
  padding: 7px 14px;
}

.btn-full {
  width: 100%;
}

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-sm);
}

/* Spinner dentro de botão */
.btn .spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

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

/* ----- Formulário ----- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
}

.input,
.select,
.textarea {
  font-family: var(--font-family);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-text-dim);
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(231, 96, 102, 0.18);
}

.input:disabled,
.select:disabled,
.textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

.select option {
  background: var(--color-surface);
  color: var(--color-text);
}

.textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

/* Grupo com botão ao lado */
.input-with-btn {
  display: flex;
  gap: 8px;
}

.input-with-btn .input {
  flex: 1;
}

/* ----- Mensagens de erro/info inline ----- */
.field-message {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
}

.field-message.error {
  background: rgba(231, 96, 102, 0.12);
  color: var(--color-error);
  border: 1px solid rgba(231, 96, 102, 0.25);
}

.field-message.success {
  background: rgba(76, 175, 125, 0.12);
  color: var(--color-success);
  border: 1px solid rgba(76, 175, 125, 0.25);
}

.field-message.info {
  background: rgba(251, 247, 242, 0.08);
  color: var(--color-text-muted);
  border: 1px solid rgba(251, 247, 242, 0.12);
}

/* ----- Badge ----- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 20px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-success {
  background: rgba(76, 175, 125, 0.18);
  color: var(--color-success);
  border: 1px solid rgba(76, 175, 125, 0.3);
}

.badge-info {
  background: rgba(231, 96, 102, 0.15);
  color: var(--color-primary-light);
  border: 1px solid rgba(231, 96, 102, 0.25);
}

.badge-warning {
  background: rgba(240, 165, 0, 0.15);
  color: var(--color-warning);
  border: 1px solid rgba(240, 165, 0, 0.25);
}

/* ----- Alerta de erro global ----- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.5;
}

.alert-error {
  background: rgba(231, 96, 102, 0.12);
  color: var(--color-error);
  border: 1px solid rgba(231, 96, 102, 0.3);
}

.alert .alert-icon {
  flex-shrink: 0;
  margin-top: 1px;
}

/* ----- Divider ----- */
.divider {
  height: 1px;
  background: var(--color-border);
  margin: 4px 0;
}

/* =========================================
   ESTADO 1: LOGIN
   ========================================= */
#screen-login {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.login-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  width: 100%;
  max-width: 420px;
}

.login-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 32px;
}

.login-logo img {
  height: 48px;
  object-fit: contain;
}

.login-title {
  font-size: 1.35rem;
  font-weight: 900;
  text-align: center;
  margin-bottom: 6px;
  color: var(--color-text);
}

.login-subtitle {
  font-size: 0.88rem;
  color: var(--color-text-dim);
  text-align: center;
  margin-bottom: 28px;
}

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

/* Token input — ícone olho */
.password-wrapper {
  position: relative;
}

.password-wrapper .input {
  padding-right: 44px;
}

.toggle-visibility {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-dim);
  padding: 4px;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

.toggle-visibility:hover {
  color: var(--color-text);
}

/* =========================================
   ESTADO 2: FORMULÁRIO
   ========================================= */
#screen-form {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.app-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-logo img {
  height: 32px;
  object-fit: contain;
}

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

.header-username {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

/* Conteúdo principal */
.form-container {
  flex: 1;
  padding: 32px 16px 48px;
  max-width: 620px;
  margin: 0 auto;
  width: 100%;
}

.form-title {
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 4px;
}

.form-description {
  font-size: 0.88rem;
  color: var(--color-text-dim);
  margin-bottom: 28px;
}

.sender-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Seção de contato encontrado */
.contact-result {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.contact-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 4px;
}

.contact-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.contact-phone {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.conversation-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary-light);
  text-decoration: none;
  margin-top: 8px;
  transition: color var(--transition);
}

.conversation-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Skeleton / loading placeholder */
.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, var(--color-surface-raised) 50%, var(--color-border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-line {
  height: 14px;
  border-radius: var(--radius-sm);
}

/* Contador de caracteres da mensagem */
.textarea-footer {
  display: flex;
  justify-content: flex-end;
}

.char-count {
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

.char-count.warning {
  color: var(--color-warning);
}

/* =========================================
   ESTADO 3: RESULTADO
   ========================================= */
#screen-result {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.result-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  text-align: center;
}

.result-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 2rem;
}

.result-icon.success {
  background: rgba(76, 175, 125, 0.15);
  color: var(--color-success);
  border: 2px solid rgba(76, 175, 125, 0.3);
}

.result-icon.error {
  background: rgba(231, 96, 102, 0.12);
  color: var(--color-error);
  border: 2px solid rgba(231, 96, 102, 0.25);
}

.result-title {
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: 8px;
}

.result-description {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 28px;
  max-width: 360px;
  line-height: 1.6;
}

.result-error-detail {
  font-size: 0.82rem;
  color: var(--color-text-dim);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  max-width: 420px;
  margin-bottom: 24px;
  text-align: left;
  font-family: monospace;
  word-break: break-word;
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 320px;
}

.link-chatwoot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary-light);
  text-decoration: none;
  padding: 12px 24px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: background var(--transition), color var(--transition);
}

.link-chatwoot:hover {
  background: rgba(231, 96, 102, 0.1);
  color: var(--color-primary);
}

/* =========================================
   RESPONSIVO
   ========================================= */
@media (max-width: 480px) {
  .login-card {
    padding: 28px 20px;
  }

  .app-header {
    padding: 10px 16px;
  }

  .header-username {
    display: none;
  }

  .form-container {
    padding: 20px 16px 40px;
  }

  .input-with-btn {
    flex-direction: column;
  }

  .input-with-btn .btn {
    width: 100%;
  }
}

@media (max-width: 360px) {
  .login-title {
    font-size: 1.15rem;
  }

  .result-title {
    font-size: 1.3rem;
  }
}