/* --------- Estilos base --------- */

:root {
    --cor-primaria: #2a6f97;
    --cor-secundaria: #f4b942;
    --cor-fundo: #f7f7fb;
    --cor-fundo-alt: #ffffff;
    --cor-texto: #333333;
    --cor-texto-claro: #666666;
    --sombra-card: 0 10px 25px rgba(0, 0, 0, 0.06);
    --raio-borda: 12px;
    --max-largura: 1100px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--cor-texto);
    background: var(--cor-fundo);
    line-height: 1.6;
}

/* --------- Layout geral --------- */

.container {
    width: 100%;
    max-width: var(--max-largura);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4rem 0;
}

.section-alt {
    padding: 4rem 0;
    background: var(--cor-fundo-alt);
}

h1, h2, h3 {
    margin-top: 0;
    color: #1f3e5a;
}

h1 {
    font-size: 2.4rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

p {
    margin: 0 0 1rem 0;
}

/* --------- Header e navegação --------- */

.site-header {
    background: #ffffff;
    border-bottom: 1px solid #e3e6ec;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
}

.logo span {
    font-weight: 700;
    color: var(--cor-primaria);
    letter-spacing: 0.04em;
}

.main-nav a {
    margin-left: 1rem;
    text-decoration: none;
    color: var(--cor-texto-claro);
    font-size: 0.95rem;
}

.main-nav a:hover {
    color: var(--cor-primaria);
}

/* --------- Hero --------- */

.hero {
    padding: 4rem 0 3rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 2rem;
    align-items: center;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--cor-texto-claro);
}

.hero-text p {
    max-width: 34rem;
}

.hero-image img {
    width: 100%;
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
}

/* --------- Botões --------- */

.btn-primary {
    display: inline-block;
    background: var(--cor-primaria);
    color: #ffffff;
    padding: 0.8rem 1.8rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: 0.5rem;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #22577a;
}

/* --------- Colunas --------- */

.two-columns {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 2rem;
    align-items: flex-start;
}

/* --------- Blocos especiais --------- */

.teaser-box {
    background: #ffffff;
    padding: 1.5rem;
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
    font-size: 0.95rem;
}

.teaser {
    font-style: italic;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.feature-card {
    background: #ffffff;
    padding: 1.4rem;
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
    font-size: 0.95rem;
}

/* --------- Autor --------- */

.author-highlight {
    background: #f0f4fb;
    padding: 1.5rem;
    border-radius: var(--raio-borda);
    font-size: 0.95rem;
}

/* --------- Comprar --------- */

.book-details {
    list-style: none;
    padding-left: 0;
    margin: 1rem 0 1.5rem;
}

.book-details li {
    margin-bottom: 0.4rem;
}

.order-form {
    background: #ffffff;
    padding: 1.5rem;
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.order-form h3 {
    margin-top: 0;
}

.order-form label {
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.order-form input,
.order-form textarea {
    border-radius: 8px;
    border: 1px solid #ced4da;
    padding: 0.5rem 0.6rem;
    font: inherit;
}

.order-form input:focus,
.order-form textarea:focus {
    outline: none;
    border-color: var(--cor-primaria);
    box-shadow: 0 0 0 2px rgba(42, 111, 151, 0.2);
}

.small-note {
    font-size: 0.8rem;
    color: var(--cor-texto-claro);
}

/* --------- Contacto --------- */

.contact-info a {
    color: var(--cor-primaria);
}

/* --------- Footer --------- */

.site-footer {
    background: #1f3e5a;
    color: #e5edf7;
    padding: 1.2rem 0;
    font-size: 0.85rem;
}

.footer-content {
    text-align: center;
}

/* --------- Checkout --------- */

.checkout-layout {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 2rem;
    align-items: flex-start;
}

.checkout-form-section {
    background: var(--cor-fundo-alt);
    padding: 2rem;
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-section {
    border-bottom: 1px solid #e3e6ec;
    padding-bottom: 2rem;
}

.form-section:last-of-type {
    border-bottom: none;
}

.form-section h2 {
    font-size: 1.3rem;
    margin-bottom: 1.2rem;
    color: var(--cor-primaria);
}

.required-asterisk {
    color: #dc3545;
    font-weight: bold;
    margin-left: 3px;
    display: inline;
}

.field-error {
    display: block;
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 0.25rem;
    min-height: 1.2rem;
}

.field-invalid {
    border-color: #dc3545 !important;
    background-color: #fff5f5 !important;
}

.field-invalid:focus {
    outline-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-row {
    margin-bottom: 1rem;
}

.form-row-two {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 1rem;
}

.checkout-form label {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--cor-texto);
}

.checkout-form label > span:first-child {
    display: inline-block;
}

.checkout-form input,
.checkout-form textarea,
.checkout-form select {
    border-radius: 8px;
    border: 1px solid #ced4da;
    padding: 0.7rem 0.8rem;
    font: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.checkout-form input:focus,
.checkout-form textarea:focus,
.checkout-form select:focus {
    outline: none;
    border-color: var(--cor-primaria);
    box-shadow: 0 0 0 3px rgba(42, 111, 151, 0.1);
}

.payment-methods {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.payment-option {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem;
    border: 2px solid #e3e6ec;
    border-radius: 8px;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
    position: relative;
}

.payment-option:hover {
    border-color: var(--cor-primaria);
    background-color: #f8f9fa;
}

.payment-option input[type="radio"] {
    margin: 0;
    cursor: pointer;
    flex-shrink: 0;
}

.payment-logo {
    width: 60px;
    height: auto;
    object-fit: contain;
    flex-shrink: 0;
}

.payment-option span:not(.recommended-badge):not(.field-error) {
    flex: 1;
    font-size: 1rem;
}

.payment-option input[type="radio"]:checked ~ span:not(.recommended-badge):not(.field-error) {
    font-weight: 600;
    color: var(--cor-primaria);
}

.payment-option:has(input[type="radio"]:checked) {
    border-color: var(--cor-primaria);
    background-color: #f0f4fb;
}

.payment-option.field-invalid {
    border-color: #dc3545;
    background-color: #fff5f5;
}

.payment-option.field-invalid:hover {
    border-color: #dc3545;
    background-color: #ffe6e6;
}

.payment-option-recommended {
    border-color: var(--cor-secundaria);
    background-color: #fffbf0;
}

.payment-option-recommended:has(input[type="radio"]:checked) {
    border-color: var(--cor-secundaria);
    background-color: #fff8e6;
}

.payment-option-recommended.field-invalid {
    border-color: #dc3545;
    background-color: #fff5f5;
}

.recommended-badge {
    background-color: var(--cor-secundaria);
    color: #1f3e5a;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.payment-option .field-error {
    font-size: 0.85rem;
    color: #dc3545;
    margin-left: auto;
    flex-shrink: 0;
}

.payment-methods {
    margin-bottom: 0.5rem;
}

.payment-methods + .field-error {
    display: block;
    font-size: 0.85rem;
    color: #dc3545;
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.payment-note {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--cor-texto-claro);
    font-style: italic;
}

.payment-info-box {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: #f0f4fb;
    border-left: 4px solid var(--cor-primaria);
    border-radius: var(--raio-borda);
}

.payment-info-box p {
    margin: 0 0 0.75rem 0;
    font-weight: 600;
    color: var(--cor-primaria);
    font-size: 1rem;
}

.payment-info-box ul {
    margin: 0;
    padding-left: 1.5rem;
    color: var(--cor-texto);
}

.payment-info-box li {
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.payment-info-box li:last-child {
    margin-bottom: 0;
}

.consent-checkbox {
    margin-top: 1rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: var(--raio-borda);
    border: 1px solid #e3e6ec;
}

.consent-checkbox label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--cor-texto);
}

.consent-checkbox input[type="checkbox"] {
    margin: 0;
    margin-top: 0.2rem;
    cursor: pointer;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    order: -1;
}

.consent-checkbox input[type="checkbox"]:required:invalid,
.consent-checkbox input[type="checkbox"].field-invalid {
    outline: 2px solid #dc3545;
    outline-offset: 2px;
}

.consent-checkbox.field-invalid {
    border-color: #dc3545;
    background-color: #fff5f5;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    flex: 1;
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--cor-texto-claro);
    padding: 1rem 2rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid #e3e6ec;
    text-align: center;
    transition: border-color 0.2s, color 0.2s;
}

.btn-secondary:hover {
    border-color: var(--cor-texto-claro);
    color: var(--cor-texto);
}

.checkout-summary {
    position: sticky;
    top: 80px;
}

.summary-card {
    background: var(--cor-fundo-alt);
    padding: 2rem;
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
}

.summary-card h2 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--cor-primaria);
}

.summary-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e3e6ec;
}

.summary-image {
    width: 80px;
    height: auto;
    border-radius: 8px;
    object-fit: cover;
}

.summary-details h3 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.summary-details p {
    font-size: 0.85rem;
    color: var(--cor-texto-claro);
    margin: 0;
}

.summary-quantity {
    margin-top: 0.5rem;
    font-weight: 600;
}

.summary-totals {
    margin-top: 1.5rem;
}

.summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.summary-total {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--cor-primaria);
    padding-top: 1rem;
    border-top: 2px solid #e3e6ec;
    margin-top: 1rem;
}

.summary-note {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: var(--cor-texto-claro);
    font-style: italic;
}

/* --------- Responsivo --------- */

@media (max-width: 860px) {
    .hero-grid,
    .two-columns {
        grid-template-columns: 1fr;
    }

    .checkout-layout {
        grid-template-columns: 1fr;
        display: flex;
        flex-direction: column;
    }

    .checkout-form-section {
        order: 2;
    }

    .checkout-summary {
        order: 1;
        position: static;
        margin-bottom: 2rem;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav {
        margin-top: 0.5rem;
    }

    .main-nav a {
        margin-left: 0;
        margin-right: 0.7rem;
    }

    .hero {
        padding-top: 3rem;
    }

    .form-row-two {
        grid-template-columns: 1fr;
    }
}

/* --------- Mensagens de erro/sucesso --------- */

.checkout-message {
    background: #fff;
    padding: 1rem 1.5rem;
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
    margin-bottom: 1.5rem;
    border-left: 4px solid;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.checkout-message.success {
    border-left-color: #28a745;
    background: #d4edda;
    color: #155724;
}

.checkout-message.error {
    border-left-color: #dc3545;
    background: #f8d7da;
    color: #721c24;
}

.checkout-message.info {
    border-left-color: var(--cor-primaria);
    background: #d1ecf1;
    color: #0c5460;
}

.checkout-message .message-content {
    flex: 1;
}

.checkout-message .message-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.checkout-message .message-close:hover {
    opacity: 1;
}

/* --------- Order Status Page Styles --------- */

.order-status-loading {
    text-align: center;
    padding: 3rem;
    color: var(--cor-texto-claro);
}

.order-status-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: var(--raio-borda);
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
}

.order-status-container {
    background: var(--cor-fundo-alt);
    border-radius: var(--raio-borda);
    box-shadow: var(--sombra-card);
    padding: 2rem;
    margin-top: 2rem;
}

.order-status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--cor-fundo);
    flex-wrap: wrap;
    gap: 1rem;
}

.order-status-header h2 {
    margin: 0;
    color: var(--cor-primaria);
}

.order-status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.order-status-badge.status-pending {
    background: #fff3cd;
    color: #856404;
}

.order-status-badge.status-paid {
    background: #d4edda;
    color: #155724;
}

.order-status-badge.status-shipped {
    background: #cce5ff;
    color: #004085;
}

.order-status-badge.status-delivered {
    background: #d1ecf1;
    color: #0c5460;
}

.order-status-badge.status-cancelled {
    background: #f8d7da;
    color: #721c24;
}

.order-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.order-info-card {
    background: var(--cor-fundo);
    padding: 1.5rem;
    border-radius: var(--raio-borda);
    border: 1px solid #e0e0e0;
}

.order-info-card h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--cor-primaria);
    font-size: 1.1rem;
}

.order-info-card p {
    margin: 0.75rem 0;
    line-height: 1.8;
}

.order-info-card strong {
    color: var(--cor-texto);
}

.order-timeline {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid var(--cor-fundo);
}

.order-timeline h3 {
    margin-bottom: 1.5rem;
    color: var(--cor-primaria);
}

.timeline-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    position: relative;
    padding-left: 0;
}

.timeline-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: -1.5rem;
    width: 2px;
    background: #e0e0e0;
    z-index: 0;
}

.timeline-marker {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--cor-primaria);
    border: 3px solid var(--cor-fundo-alt);
    margin-right: 1rem;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
    margin-top: 0;
}

.timeline-content {
    flex: 1;
    padding-top: 0;
    position: relative;
    z-index: 1;
}

.timeline-content strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--cor-texto);
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--cor-texto-claro);
}

/* --------- Confirmation Modal --------- */

.confirmation-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    z-index: 1000;
    padding: 2rem 1rem;
    overflow-y: auto;
}

.confirmation-modal-content {
    background: var(--cor-fundo-alt);
    border-radius: var(--raio-borda);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 700px;
    width: 100%;
    margin: auto;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.confirmation-modal-header {
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid #e3e6ec;
}

.confirmation-modal-header h2 {
    margin: 0 0 0.5rem 0;
    color: var(--cor-primaria);
    font-size: 1.5rem;
}

.confirmation-subtitle {
    margin: 0;
    color: var(--cor-texto-claro);
    font-size: 0.95rem;
}

.confirmation-modal-body {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
}

.confirmation-section {
    margin-bottom: 2rem;
}

.confirmation-section:last-child {
    margin-bottom: 0;
}

.confirmation-section h3 {
    font-size: 1.1rem;
    margin: 0 0 1rem 0;
    color: var(--cor-primaria);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e3e6ec;
}

.confirmation-info-grid {
    display: grid;
    gap: 1rem;
}

.confirmation-info-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.75rem;
    background: var(--cor-fundo);
    border-radius: 8px;
    border: 1px solid #e3e6ec;
}

.confirmation-info-item strong {
    font-size: 0.85rem;
    color: var(--cor-texto-claro);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.confirmation-info-item span {
    font-size: 1rem;
    color: var(--cor-texto);
    font-weight: 500;
    word-break: break-word;
}

.confirmation-summary {
    background: var(--cor-fundo);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #e3e6ec;
}

.confirmation-summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--cor-texto);
}

.confirmation-summary-line:last-child {
    margin-bottom: 0;
}

.confirmation-total {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--cor-primaria);
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 2px solid #e3e6ec;
}

.confirmation-modal-footer {
    padding: 1.5rem 2rem 2rem;
    border-top: 1px solid #e3e6ec;
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

.confirmation-modal-footer .btn-primary,
.confirmation-modal-footer .btn-secondary {
    flex: 1;
    padding: 0.9rem 1.5rem;
    font-size: 1rem;
}

@media (max-width: 500px) {
    h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section,
    .section-alt {
        padding: 3rem 0;
    }

    .checkout-form-section {
        padding: 1.5rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn-secondary {
        width: 100%;
    }

    .order-status-container {
        padding: 1.5rem;
    }

    .order-info-grid {
        grid-template-columns: 1fr;
    }

    .order-status-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .confirmation-modal {
        padding: 1rem 0.5rem;
    }

    .confirmation-modal-content {
        max-height: 95vh;
    }

    .confirmation-modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }

    .confirmation-modal-header h2 {
        font-size: 1.3rem;
    }

    .confirmation-modal-body {
        padding: 1.5rem;
    }

    .confirmation-modal-footer {
        padding: 1rem 1.5rem 1.5rem;
        flex-direction: column;
    }

    .confirmation-modal-footer .btn-primary,
    .confirmation-modal-footer .btn-secondary {
        width: 100%;
    }
}