@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@300;400;500;600&display=swap');

:root {
    --bg-primary: #1a1a18;
    --bg-secondary: #2a2a28;
    --bg-tertiary: #0a0a08;
    --bg-hover: #323230;
    --border-primary: #3a3a38;
    --border-hover: #5a5a58;
    --text-primary: #E0E0E0;
    --text-secondary: #a0a0a0;
    --text-dark: #1a1a18;
    --accent-light: #c0c0c0;
    --status-success-bg: #2a4a2a;
    --status-success-text: #80e080;
    --status-warning-bg: #4a3a2a;
    --status-warning-text: #e0a080;
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IBM Plex Mono', monospace;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
}

/* Container geral */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Títulos */
h1 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 30px;
    color: var(--text-primary);
}

h2 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 20px;
    color: var(--text-primary);
}

/* Página de Identificação */
.login-form {
    max-width: 400px;
    margin: 0 auto;
    padding: 40px 0;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-primary);
}

input[type="email"],
input[type="text"],
input[type="date"],
input[type="number"] {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    color: var(--text-primary);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
    border-radius: 4px;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

input:focus {
    outline: none;
    border-color: var(--border-hover);
}

input:focus-visible {
    outline: 2px solid var(--border-hover);
    outline-offset: 2px;
}

/* Botões */
.btn {
    padding: 12px 24px;
    background-color: var(--text-primary);
    color: var(--text-dark);
    border: none;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    background-color: var(--accent-light);
}

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

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

.btn-primary {
    width: 100%;
}

.btn-secondary {
    background-color: var(--border-primary);
    color: var(--text-primary);
    margin-left: 10px;
}

.btn-secondary:hover {
    background-color: #4a4a48;
}

.btn-group {
    display: flex;
    gap: 10px;
    margin-top: 30px;
}

/* Lista de Faturas */
.faturas-header {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-primary);
}

.user-email {
    font-size: 14px;
    color: var(--text-secondary);
}

.faturas-lista {
    list-style: none;
}

.fatura-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    padding: 20px;
    margin-bottom: 15px;
    border-radius: 4px;
    transition: border-color var(--transition-speed), background-color var(--transition-speed), transform var(--transition-speed);
}

.fatura-item:hover {
    border-color: var(--border-hover);
    background-color: var(--bg-hover);
    transform: translateY(-2px);
}

.fatura-item a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.fatura-item a:focus-visible {
    outline: 2px solid var(--border-hover);
    outline-offset: 4px;
    border-radius: 4px;
}

.fatura-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.fatura-numero {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.fatura-status {
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
}

.status-paga {
    background-color: var(--status-success-bg);
    color: var(--status-success-text);
}

.status-aberto {
    background-color: var(--status-warning-bg);
    color: var(--status-warning-text);
}

.fatura-info {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.fatura-vencimento,
.fatura-valor {
    display: flex;
    flex-direction: column;
}

.fatura-vencimento span:first-child,
.fatura-valor span:first-child {
    font-size: 12px;
    margin-bottom: 4px;
}

.fatura-valor span:last-child {
    color: var(--text-primary);
    font-weight: 500;
}

/* Detalhes da Fatura */
.detalhe-container {
    max-width: 600px;
    margin: 0 auto;
}

.fatura-detalhes {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    padding: 30px;
    border-radius: 4px;
    margin-bottom: 30px;
}

.detalhe-linha {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-primary);
}

.detalhe-linha:last-child {
    border-bottom: none;
}

.detalhe-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.detalhe-valor {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}

.detalhe-valor.destaque {
    font-size: 16px;
}

.itens-fatura {
    margin-top: 30px;
}

.itens-lista {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    padding: 20px;
    border-radius: 4px;
}

.item-linha {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-primary);
}

.item-linha:last-child {
    border-bottom: none;
}

.item-descricao {
    font-size: 14px;
    color: var(--text-primary);
}

.item-valor {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Painel Administrativo */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background-color: var(--bg-tertiary);
    padding: 30px 20px;
    border-right: 1px solid var(--border-primary);
}

.admin-logo {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 40px;
    color: var(--text-primary);
}

.admin-menu {
    list-style: none;
}

.admin-menu li {
    margin-bottom: 10px;
}

.admin-menu a {
    display: block;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.admin-menu a:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.admin-menu a:focus-visible {
    outline: 2px solid var(--border-hover);
    outline-offset: 2px;
}

.admin-menu a.active {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.admin-content {
    flex: 1;
    padding: 40px;
}

.admin-header {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-primary);
}

.admin-section {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    padding: 30px;
    border-radius: 4px;
}

/* Voltar */
.voltar-link {
    display: inline-block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 20px;
    transition: color var(--transition-speed);
}

.voltar-link:hover {
    color: var(--text-primary);
}

.voltar-link:focus-visible {
    outline: 2px solid var(--border-hover);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Responsivo */
@media (max-width: 768px) {
    .admin-wrapper {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-primary);
    }

    .fatura-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .fatura-info {
        flex-direction: column;
        gap: 10px;
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-secondary {
        margin-left: 0;
    }
}