/* =====================================================
   PALETA DE CORES — variáveis CSS centralizadas
===================================================== */
:root {
    --color-primary:       #1A73E8;
    --color-primary-dark:  #1558B0;
    --color-primary-light: #D6E4FB;
    --color-bg:            #F0F4FF;
    --color-surface:       #FFFFFF;
    --color-text:          #1C2B4A;
    --color-muted:         #5A7099;
    --color-border:        #C2D4F0;
    --color-success:       #0F9D58;
    --color-error:         #D93025;
}

/* =====================================================
   BASE
===================================================== */
body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main { flex: 1; }

/* =====================================================
   CABEÇALHO
===================================================== */
.site-header {
    background-color: #1C2B4A;
    padding: 1.25rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.site-header .header-icon {
    font-size: 2.2rem;
    color: var(--color-primary);
    line-height: 1;
}

.site-header .brand-name {
    color: #FFFFFF;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin: 0;
}

.site-header .brand-tagline {
    color: var(--color-border);
    font-size: 0.73rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    margin: 0;
}

/* Badge "Online" no header */
.status-badge {
    background-color: rgba(15, 157, 88, 0.15);
    color: #4ADE80;
    border: 1px solid rgba(74, 222, 128, 0.3);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: 20px;
    letter-spacing: 0.04em;
}

.status-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: #4ADE80;
    border-radius: 50%;
    margin-right: 4px;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}

/* =====================================================
   CARD DO FORMULÁRIO
===================================================== */
.form-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    box-shadow: 0 6px 28px rgba(26, 115, 232, 0.09);
    padding: 2.5rem;
}

.card-section-title {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 1.1rem;
}

.section-divider {
    border: none;
    border-top: 1px dashed var(--color-border);
    margin: 1.75rem 0 1.5rem;
}

/* Cabeçalho interno do card */
.card-header-block {
    border-bottom: 2px solid var(--color-primary-light);
}

.card-title {
    color: var(--color-text);
}

.title-icon {
    color: var(--color-primary);
}

.card-desc {
    color: var(--color-muted);
    font-size: 0.88rem;
}

/* =====================================================
   LABELS
===================================================== */
.form-label {
    color: var(--color-muted);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.035em;
    text-transform: uppercase;
    margin-bottom: 0.35rem;
}

/* =====================================================
   INPUTS E TEXTAREA
===================================================== */
.form-control {
    border-color: var(--color-border);
    color: var(--color-text);
    border-radius: 8px;
    padding: 0.6rem 0.9rem;
    font-size: 0.95rem;
    transition: border-color 0.18s, box-shadow 0.18s, background-color 0.18s;
    background-color: var(--color-surface);
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.14);
    color: var(--color-text);
    background-color: var(--color-surface);
}

.form-control::placeholder { color: #A8BDD4; }

textarea.form-control { resize: vertical; min-height: 130px; }

/* Ícone prefix do input-group */
.input-group-text {
    background-color: var(--color-primary-light);
    border-color: var(--color-border);
    color: var(--color-primary);
    border-radius: 8px 0 0 8px;
}

.input-group .form-control { border-radius: 0 8px 8px 0; }

/* =====================================================
   VALIDAÇÃO — is-valid / is-invalid customizados
===================================================== */
.form-control.is-valid {
    border-color: var(--color-success);
    background-image: none;    /* remove ícone padrão do Bootstrap */
    padding-right: 0.9rem;
}

.form-control.is-valid:focus {
    border-color: var(--color-success);
    box-shadow: 0 0 0 3px rgba(15, 157, 88, 0.14);
}

.form-control.is-invalid {
    border-color: var(--color-error);
    background-image: none;
    padding-right: 0.9rem;
}

.form-control.is-invalid:focus {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(217, 48, 37, 0.14);
}

/* Para input-group com validação: destaca a borda do grupo inteiro */
.input-group.has-validation .input-group-text {
    transition: border-color 0.18s;
}

.input-group.has-validation:has(.is-invalid) .input-group-text {
    border-color: var(--color-error);
}

.input-group.has-validation:has(.is-valid) .input-group-text {
    border-color: var(--color-success);
}

.invalid-feedback { color: var(--color-error);   font-size: 0.78rem; margin-top: 0.3rem; }
.valid-feedback   { color: var(--color-success); font-size: 0.78rem; margin-top: 0.3rem; }

/* Contador de caracteres */
.char-counter {
    font-size: 0.75rem;
    color: var(--color-muted);
    text-align: right;
    margin-top: 0.25rem;
}

.char-counter.near-limit { color: var(--color-error); }

/* Dica abaixo da textarea */
.form-hint { color: var(--color-muted); }

/* Nota de campos obrigatórios */
.form-required-note {
    font-size: 0.78rem;
    color: var(--color-muted);
}

/* =====================================================
   BOTÃO DE ENVIO
===================================================== */
.btn-submit {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #FFFFFF;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.75rem 2rem;
    border-radius: 9px;
    letter-spacing: 0.02em;
    transition: background-color 0.18s, border-color 0.18s,
                transform 0.12s, box-shadow 0.18s;
}

.btn-submit:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(26, 115, 232, 0.32);
    transform: translateY(-1px);
}

.btn-submit:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: none;
}

.btn-submit:disabled {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    opacity: 0.72;
    cursor: not-allowed;
}

/* =====================================================
   ALERTAS DE FEEDBACK (topo do formulário)
===================================================== */
.alert-feedback {
    border-radius: 10px;
    border: none;
    padding: 1rem 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.alert-feedback.is-success {
    background-color: #E6F4EE;
    color: #0A7340;
    border-left: 4px solid var(--color-success);
}

.alert-feedback.is-error {
    background-color: #FCE8E6;
    color: #B31412;
    border-left: 4px solid var(--color-error);
}

.alert-feedback .af-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    line-height: 1.2;
}

.alert-feedback .af-title {
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 0.2rem;
}

.alert-feedback .af-msg {
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
}

/* Badge de protocolo exibido no alerta de sucesso */
.protocol-badge {
    display: inline-block;
    margin-top: 0.45rem;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    border: 1px solid rgba(26, 115, 232, 0.25);
    border-radius: 6px;
    padding: 0.25rem 0.65rem;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

/* Estado oculto — controlado via JS (classList toggle) */
.is-hidden { display: none; }

/* =====================================================
   RODAPÉ
===================================================== */
.site-footer {
    background-color: #1C2B4A;
    color: var(--color-border);
    font-size: 0.78rem;
    padding: 1.1rem 0;
    text-align: center;
}

.site-footer a {
    color: var(--color-primary-light);
    text-decoration: none;
}

.site-footer a:hover { text-decoration: underline; }

.footer-icon { color: var(--color-primary); }

/* =====================================================
   RESPONSIVIDADE
===================================================== */
@media (max-width: 575.98px) {
    .form-card { padding: 1.5rem 1.25rem; }
    .site-header .brand-name { font-size: 1.1rem; }
}