:root {
    --laranja: #FF6B35;
    --laranja-escuro: #E0501F;
    --amarelo: #FFD23F;
    --verde: #06D6A0;
    --escuro: #1A1A2E;
    --escuro-2: #16213E;
    --texto-claro: #FFFFFF;
    --texto-suave: #C5C9E0;
    --sombra: rgba(0, 0, 0, 0.25);
    --raio: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Poppins', system-ui, -apple-system, sans-serif;
    background: linear-gradient(160deg, var(--escuro) 0%, var(--escuro-2) 100%);
    color: var(--texto-claro);
    min-height: 100vh;
}

.faixa-topo {
    background: repeating-linear-gradient(135deg, var(--laranja), var(--laranja) 10px, var(--laranja-escuro) 10px, var(--laranja-escuro) 20px);
    text-align: center;
    padding: 8px;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

header.cabecalho {
    text-align: center;
    padding: 40px 20px 20px;
}

.logo {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo span { color: var(--amarelo); }

.subtitulo {
    color: var(--texto-suave);
    margin-top: 8px;
    font-size: 1rem;
}

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 30px 20px 60px;
}

.grade-lojas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 30px;
}

.cartao-loja {
    background: linear-gradient(145deg, #232b4d, #1c2440);
    border-radius: var(--raio);
    padding: 32px 24px;
    text-align: center;
    text-decoration: none;
    color: var(--texto-claro);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    box-shadow: 0 8px 24px var(--sombra);
    border: 2px solid transparent;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    position: relative;
    overflow: hidden;
}

.cartao-loja::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 60%);
    animation: girar 8s linear infinite;
}

@keyframes girar {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.cartao-loja:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--amarelo);
    box-shadow: 0 14px 32px var(--sombra);
}

.cartao-loja .emoji-loja {
    font-size: 3rem;
    animation: flutuar 3s ease-in-out infinite;
}

@keyframes flutuar {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.cartao-loja .nome-loja {
    font-size: 1.3rem;
    font-weight: 700;
}

.cartao-loja .selo-cupons {
    background: var(--verde);
    color: var(--escuro);
    font-weight: 700;
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.botao-ver-cupons {
    margin-top: 6px;
    background: var(--laranja);
    color: white;
    font-weight: 700;
    padding: 10px 24px;
    border-radius: 30px;
    font-size: 0.95rem;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
    animation: pulsar 2s ease-in-out infinite;
}

@keyframes pulsar {
    0%, 100% { box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4); }
    50% { box-shadow: 0 4px 20px rgba(255, 107, 53, 0.7); }
}

/* Página de cupons */

.cabecalho-cupons {
    text-align: center;
    margin-bottom: 30px;
}

.botao-voltar {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--texto-suave);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 16px;
    transition: color 0.2s ease;
}

.botao-voltar:hover { color: var(--texto-claro); }

.lista-cupons {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cartao-cupom {
    background: linear-gradient(120deg, #232b4d, #1c2440);
    border-radius: var(--raio);
    padding: 22px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 2px dashed rgba(255, 210, 63, 0.35);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.cartao-cupom:hover {
    transform: translateX(4px);
    border-color: var(--amarelo);
}

.info-cupom { display: flex; flex-direction: column; gap: 4px; }

.percentual-cupom {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--amarelo);
}

.titulo-cupom { font-weight: 700; font-size: 1.05rem; }
.descricao-cupom { color: var(--texto-suave); font-size: 0.85rem; }

.codigo-cupom {
    background: rgba(255,255,255,0.08);
    border: 1px dashed var(--texto-suave);
    padding: 2px 10px;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.8rem;
    width: fit-content;
    margin-top: 4px;
}

.botao-resgatar {
    background: var(--verde);
    color: var(--escuro);
    font-weight: 800;
    padding: 12px 22px;
    border-radius: 30px;
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(6, 214, 160, 0.35);
    transition: transform 0.2s ease;
}

.botao-resgatar:hover { transform: scale(1.06); }

.sem-cupons {
    text-align: center;
    color: var(--texto-suave);
    padding: 60px 20px;
}

footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--texto-suave);
    font-size: 0.8rem;
}

footer a { color: var(--texto-suave); }

@media (max-width: 480px) {
    .cartao-cupom { flex-direction: column; align-items: stretch; text-align: center; }
    .botao-resgatar { text-align: center; }
}