/* Design system unificado - Simulador Tarifa Nodal */

:root {
    --color-primary: #00688f;
    --color-primary-dark: #004a66;
    --color-primary-light: #2391cc;
    --color-primary-soft: #e7f2f7;

    --color-success: #1e8449;
    --color-success-dark: #166a39;

    --color-warning: #b8860b;
    --color-danger: #b23b2e;

    --color-bg: #f2f5f7;
    --color-surface: #ffffff;
    --color-border: #dbe3e8;
    --color-text: #253440;
    --color-text-muted: #64798a;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 2px rgba(15, 42, 54, 0.06), 0 1px 3px rgba(15, 42, 54, 0.08);
    --shadow-md: 0 6px 20px rgba(15, 42, 54, 0.10);

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html, body {
    height: 100%;
}

body {
    background: var(--color-bg);
    font-family: var(--font-sans);
    color: var(--color-text);
}

/* ---------- Navbar ---------- */
.navbar-custom {
    background: linear-gradient(120deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    box-shadow: var(--shadow-sm);
    padding: 0.6rem 0;
}

.navbar-custom .container-fluid {
    height: 100%;
}

.navbar-brand img {
    height: 56px;
    width: auto;
}

.navbar-text {
    font-size: 1.35rem;
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.navbar-version {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    padding: 0.2rem 0.75rem;
}

/* ---------- Superficies / Cards ---------- */
.panel-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

fieldset.panel-section {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    padding: 1.1rem 1.35rem 1.35rem;
    box-shadow: var(--shadow-sm);
}

fieldset.panel-section legend {
    float: none;
    width: auto;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    padding: 0 0.5rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ---------- Texto e formulario ---------- */
label {
    font-weight: 600;
    color: var(--color-text);
}

.form-control:focus {
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 0.2rem var(--color-primary-soft);
}

.text-muted-soft {
    color: var(--color-text-muted);
}

/* ---------- Botoes ---------- */
.btn-nodal-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background-color .15s ease-in-out, transform .05s ease-in-out;
}

.btn-nodal-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
}

.btn-nodal-primary:active {
    transform: translateY(1px);
}

.btn-nodal-success {
    background: var(--color-success);
    border-color: var(--color-success);
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.btn-nodal-success:hover {
    background: var(--color-success-dark);
    border-color: var(--color-success-dark);
    color: #fff;
}

/* ---------- Upload dropzone ---------- */
.upload-dropzone {
    background: var(--color-primary-soft);
    border: 1.5px dashed var(--color-primary-light);
    border-radius: var(--radius-md);
    padding: 0.9rem 1.25rem;
}

.upload-dropzone-label {
    color: var(--color-primary-dark);
    font-weight: 600;
}

/* ---------- Overlay de carregamento ---------- */
#overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(18, 32, 40, 0.65);
    z-index: 1000;
    text-align: center;
    color: #fff;
    font-family: var(--font-sans);
}

#overlay .content {
    position: relative;
    top: 50%;
    transform: translateY(-50%);
}

#overlay p {
    margin-top: 1rem;
    font-size: 1.05rem;
}

/* ---------- Tabelas de resultado ---------- */
.table-nodal {
    font-family: var(--font-sans);
    border-collapse: collapse;
    width: 100%;
}

.table-nodal th, .table-nodal td {
    border: 1px solid var(--color-border);
    padding: 8px 10px;
}

.table-nodal th {
    background-color: var(--color-primary-light);
    color: #fff;
    text-align: center;
    padding-top: 10px;
    padding-bottom: 10px;
}

.table-nodal tr:nth-child(even) {
    background-color: var(--color-primary-soft);
}

.table-nodal tr:hover {
    background-color: #e2edf3;
}

/* ---------- Alertas de resultado ---------- */
.result-banner {
    display: inline-block;
    padding: 0.9rem 1.5rem;
    border-radius: var(--radius-md);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

.result-banner.is-success {
    background-color: var(--color-success);
}

.result-banner.is-warning {
    background-color: var(--color-warning);
}