:root {
  --marinho: #071a80;
  --safira: #1355b2;
  --azul-suave: #f1f5ff;
  --texto: #071a80;
  --texto-fraco: #445277;
  --borda: #dce5f7;
  --verde: #16a34a;
  --ambar: #d97706;
  --vermelho: #dc2626;
  --cinza: #94a3b8;
  --radius: 16px;
  --sombra: 0 16px 40px rgba(7, 26, 128, 0.1);
  --fonte: "Poppins", Arial, sans-serif;
}

@font-face {
  font-family: "Poppins";
  src: url("assets/fonts/Poppins-Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Poppins";
  src: url("assets/fonts/Poppins-Medium.ttf") format("truetype");
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "Poppins";
  src: url("assets/fonts/Poppins-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-display: swap;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  font-family: var(--fonte);
  color: var(--texto);
  background: radial-gradient(1000px 600px at 50% -15%, #dce8ff 0%, #f8faff 65%);
}

.card {
  width: 100%;
  max-width: 440px;
  background: #fff;
  border: 1px solid var(--borda);
  border-radius: 16px;
  box-shadow: var(--sombra);
  padding: 32px 28px 24px;
}

.brand {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.brand__logo {
  width: 220px;
  max-width: 80%;
  height: auto;
}

h1 {
  margin: 8px 0 4px;
  font-size: 1.4rem;
  text-align: center;
  color: var(--marinho);
}

.lead {
  margin: 0 0 20px;
  text-align: center;
  color: var(--texto-fraco);
  font-size: 0.94rem;
}

/* ---------- formulário ---------- */

.field {
  display: block;
}

.field__label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--texto-fraco);
}

input[type="tel"] {
  width: 100%;
  padding: 14px 16px;
  font-size: 1.05rem;
  font-family: inherit;
  color: var(--texto);
  border: 1.5px solid var(--borda);
  border-radius: 12px;
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input[type="tel"]:focus {
  outline: none;
  border-color: var(--safira);
  box-shadow: 0 0 0 4px rgba(19, 85, 178, 0.14);
}

input[type="tel"][aria-invalid="true"] {
  border-color: var(--vermelho);
}

.field__error {
  margin: 8px 0 0;
  font-size: 0.85rem;
  color: var(--vermelho);
}

/* ---------- botões ---------- */

.btn {
  width: 100%;
  margin-top: 16px;
  padding: 14px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.08s, filter 0.15s;
}

.btn--primary {
  color: #fff;
  background: #1355b2;
}

.btn--connected {
  color: #fff;
  background: #16a34a;
  cursor: default;
}

.btn:hover:not(:disabled) {
  filter: brightness(1.08);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn--connected:disabled {
  opacity: 1;
  cursor: default;
}

.link-back {
  border: none;
  background: none;
  padding: 0;
  margin-bottom: 16px;
  font: inherit;
  font-size: 0.86rem;
  color: var(--texto-fraco);
  cursor: pointer;
}

.link-back:hover {
  color: var(--marinho);
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* ---------- status ---------- */

.status {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--azul-suave);
  border: 1px solid var(--borda);
}

.status__dot {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cinza);
}

.status__title {
  display: block;
  font-size: 0.95rem;
}

.status__desc {
  font-size: 0.82rem;
  color: var(--texto-fraco);
}

.status[data-state="connecting"] .status__dot,
.status[data-state="loading"] .status__dot {
  background: var(--ambar);
  animation: pulse 1.2s ease-in-out infinite;
}

.status[data-state="connected"] .status__dot {
  background: var(--verde);
}

.status[data-state="disconnected"] .status__dot,
.status[data-state="error"] .status__dot {
  background: var(--vermelho);
}

.status[data-state="connected"] {
  background: #f0fdf4;
  border-color: #bbf7d0;
}

.status[data-state="error"] {
  background: #fef2f2;
  border-color: #fecaca;
}

@keyframes pulse {
  50% {
    opacity: 0.35;
  }
}

.phone-echo {
  margin: 12px 0 0;
  font-size: 0.85rem;
  color: var(--texto-fraco);
  text-align: center;
}

/* ---------- QR ---------- */

.qr {
  margin-top: 20px;
  text-align: center;
}

.qr img {
  width: 260px;
  max-width: 100%;
  aspect-ratio: 1;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--borda);
  border-radius: 16px;
  image-rendering: pixelated;
}

.qr__hint {
  margin: 14px auto 0;
  max-width: 320px;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--texto-fraco);
}

/* Passo a passo do QR: numeração azul em contador próprio, para o cliente saber
   exatamente onde tocar no celular. */
.passos {
  margin: 18px 0 0;
  padding: 16px 16px 16px 14px;
  list-style: none;
  counter-reset: passo;
  text-align: left;
  background: var(--azul-suave);
  border-radius: 12px;
}

.passos li {
  counter-increment: passo;
  position: relative;
  padding-left: 34px;
  margin-bottom: 10px;
  font-size: 0.88rem;
  line-height: 1.45;
}

.passos li:last-child {
  margin-bottom: 0;
}

.passos li::before {
  content: counter(passo);
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-size: 0.74rem;
  font-weight: 700;
  color: #fff;
  background: var(--safira);
  border-radius: 50%;
}

.passos__icone {
  display: inline-block;
  padding: 0 5px;
  font-weight: 700;
  color: var(--marinho);
  background: #fff;
  border: 1px solid var(--borda);
  border-radius: 4px;
}

.passos__nota {
  display: block;
  margin-top: 3px;
  font-size: 0.79rem;
  color: var(--texto-fraco);
}

.qr__timer {
  margin: 10px 0 0;
  font-size: 0.8rem;
  color: var(--ambar);
  font-variant-numeric: tabular-nums;
}

/* ---------- conectado ---------- */

.connected {
  margin-top: 24px;
  text-align: center;
}

.connected__check {
  width: 64px;
  height: 64px;
  margin: 0 auto;
  display: grid;
  place-items: center;
  font-size: 2rem;
  color: #fff;
  background: var(--verde);
  border-radius: 50%;
}

.connected__name {
  margin: 12px 0 0;
  font-weight: 600;
}

.alert {
  margin: 16px 0 0;
  padding: 12px 14px;
  font-size: 0.85rem;
  color: #7f1d1d;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 10px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}