/* DecoderX - Estilos */

:root {
    --primary:    #1a3a5c;
    --secondary:  #e8a020;
    --bg-dark:    #0d1f33;
    --text-muted: #6c757d;
    --radius:     12px;
    /* cores por seção VIN */
    --c-wmi:   #3b82f6;
    --c-vds:   #22c55e;
    --c-check: #eab308;
    --c-vis:   #ec4899;
    --bg-wmi:  #dbeafe;
    --bg-vds:  #dcfce7;
    --bg-check:#fef9c3;
    --bg-vis:  #fce7f3;
}

body {
    background: #f0f4f8;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #2d3748;
    min-height: 100vh;
}

/* ── Header ───────────────────────────────────────────────── */
.site-header {
    background: var(--bg-dark);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,.3);
}
.site-header .navbar-brand { color: #fff; font-size: 1.5rem; font-weight: 700; }
.brand-x  { color: var(--secondary); }
.tagline  { color: #8aa5bf; font-size: .72rem; display: block; line-height: 1; }

/* ── Hero ─────────────────────────────────────────────────── */
.hero-section {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%);
    padding: 3.5rem 0 3rem;
    color: #fff;
}
.hero-section h1 { font-size: 2rem; font-weight: 700; }
.hero-section p  { color: #8aa5bf; }

.vin-search-box {
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 700px;
    margin: 0 auto;
}
.vin-input-group .form-control {
    font-size: 1.2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 8px 0 0 8px;
    border: 2px solid rgba(255,255,255,.3);
    background: rgba(255,255,255,.1);
    color: #fff;
    padding: .75rem 1.2rem;
}
.vin-input-group .form-control::placeholder { color: rgba(255,255,255,.35); }
.vin-input-group .form-control:focus {
    background: rgba(255,255,255,.15);
    border-color: var(--secondary);
    box-shadow: none;
    color: #fff;
}
.vin-input-group .btn-decode {
    background: var(--secondary);
    border: none;
    color: #fff;
    font-weight: 700;
    padding: .75rem 2rem;
    border-radius: 0 8px 8px 0;
    transition: background .2s;
}
.vin-input-group .btn-decode:hover { background: #d48f18; }
.vin-tips { color: #8aa5bf; font-size: .8rem; margin-top: .6rem; }

/* ── Resultado ────────────────────────────────────────────── */
.result-section { padding: 2.5rem 0; }

.card-result {
    border: none;
    border-radius: var(--radius);
    box-shadow: 0 2px 16px rgba(0,0,0,.09);
}
.result-header {
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 1.25rem 1.5rem;
}
.result-vin-display {
    font-family: 'Courier New', monospace;
    font-size: 1.4rem;
    letter-spacing: 3px;
    font-weight: 700;
    color: var(--secondary);
}

/* ── Mapa do Chassi ──────────────────────────────────────── */
.section-label {
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-muted);
    margin-bottom: .6rem;
    padding-bottom: .35rem;
    border-bottom: 2px solid #e9ecef;
}

.vin-positions-block { display: flex; flex-wrap: wrap; gap: 4px; margin: .75rem 0; }
.vin-char {
    width: 42px; height: 48px;
    border-radius: 6px;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    font-family: 'Courier New', monospace;
    cursor: default;
    border: 2px solid transparent;
    transition: transform .12s;
}
.vin-char:hover { transform: translateY(-3px); }
.vin-char .char-value { font-size: 1.1rem; font-weight: 700; line-height: 1; }
.vin-char .char-pos   { font-size: .6rem; color: #777; margin-top: 2px; }
.vin-char.wmi   { background: var(--bg-wmi);   border-color: var(--c-wmi); }
.vin-char.vds   { background: var(--bg-vds);   border-color: var(--c-vds); }
.vin-char.check { background: var(--bg-check); border-color: var(--c-check); }
.vin-char.vis   { background: var(--bg-vis);   border-color: var(--c-vis); }

.vin-legend { display: flex; flex-wrap: wrap; gap: .75rem; font-size: .78rem; }
.legend-dot { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-right: 4px; vertical-align: middle; }

/* ── Rótulos de grupo (WMI / VDS / Check / VIS) ─────────── */
.group-label {
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    padding: .25rem .65rem;
    border-radius: 5px;
    display: inline-block;
    margin-bottom: .6rem;
}
.wmi-group-label   { background: var(--bg-wmi);   color: #1e40af; }
.vds-group-label   { background: var(--bg-vds);   color: #166534; }
.check-group-label { background: var(--bg-check); color: #713f12; }
.vis-group-label   { background: var(--bg-vis);   color: #9d174d; }

/* ── Cards de informação ──────────────────────────────────── */
.info-card {
    background: #fff;
    border-radius: 10px;
    padding: 1rem 1.2rem;
    height: 100%;
    border-left: 4px solid var(--secondary);
    box-shadow: 0 1px 6px rgba(0,0,0,.06);
    position: relative;
    overflow: hidden;
}
.info-card h6 {
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--text-muted);
    margin-bottom: .25rem;
    line-height: 1.3;
}
.info-card .info-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    line-height: 1.3;
}
.info-card .info-icon {
    font-size: 1.4rem;
    float: right;
    opacity: .18;
}

/* Card do dígito verificador — sem borda lateral colorida */
.check-card { border-left-color: var(--c-check); }

/* Pílula de código inline (WMI, ano, planta) */
.code-pill {
    font-family: 'Courier New', monospace;
    font-size: .7rem;
    background: #eef2f7;
    padding: 1px 6px;
    border-radius: 4px;
    color: var(--primary);
    font-weight: 700;
    vertical-align: middle;
}

/* Dígito verificador — destaque */
.check-digit-char {
    font-family: 'Courier New', monospace;
    font-size: 1.6rem;
    font-weight: 800;
    color: #92600a;
    line-height: 1;
    background: var(--bg-check);
    width: 2.4rem;
    height: 2.4rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--c-check);
    flex-shrink: 0;
}

.font-mono { font-family: 'Courier New', monospace; }

/* ── Badges ───────────────────────────────────────────────── */
.badge-valid   { background: #d1fae5; color: #065f46; border: 1px solid #6ee7b7; padding: 3px 10px; border-radius: 5px; font-size: .82rem; }
.badge-invalid { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; padding: 3px 10px; border-radius: 5px; font-size: .82rem; }

/* Badges das seções na tabela da página inicial */
.badge-wmi   { background: var(--bg-wmi);   color: #1e40af; padding: 2px 8px; border-radius: 4px; font-size: .78rem; font-weight: 600; }
.badge-vds   { background: var(--bg-vds);   color: #166534; padding: 2px 8px; border-radius: 4px; font-size: .78rem; font-weight: 600; }
.badge-check { background: var(--bg-check); color: #713f12; padding: 2px 8px; border-radius: 4px; font-size: .78rem; font-weight: 600; }
.badge-vis   { background: var(--bg-vis);   color: #9d174d; padding: 2px 8px; border-radius: 4px; font-size: .78rem; font-weight: 600; }


/* ── Tabela posições ──────────────────────────────────────── */
.pos-badge {
    background: var(--primary);
    color: #fff;
    border-radius: 5px;
    padding: 2px 8px;
    font-family: 'Courier New', monospace;
    font-size: .8rem;
}

/* ── Alert erros ──────────────────────────────────────────── */
.alert-vin-error { border-radius: var(--radius); border-left: 5px solid #dc3545; }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer { background: var(--bg-dark); color: #8aa5bf; padding: 1.5rem 0; font-size: .8rem; }

@media (max-width: 576px) {
    .hero-section h1 { font-size: 1.4rem; }
    .vin-char { width: 34px; height: 42px; }
    .vin-char .char-value { font-size: .9rem; }
    .result-vin-display { font-size: 1rem; letter-spacing: 1.5px; }
}

/* ── SEO Landing Page ────────────────────────────────────── */
.hero-tagline {
    color: #a8c4d8;
    font-size: 1rem;
    max-width: 680px;
    margin: .5rem auto 0;
}
.trust-bar {
    background: rgba(255,255,255,.06);
    border-top: 1px solid rgba(255,255,255,.1);
    padding: 1.25rem 0 0;
    margin-top: 2rem;
}
.trust-bar .trust-item {
    color: #8aa5bf;
    font-size: .82rem;
    display: flex;
    align-items: center;
    gap: .4rem;
}
.trust-bar .trust-num {
    color: var(--secondary);
    font-weight: 700;
    font-size: 1rem;
}
.seo-section {
    padding: 3.5rem 0;
}
.seo-section:nth-child(even) {
    background: #e8edf3;
}
.seo-section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
}
.seo-section h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 1.25rem;
    margin-bottom: .4rem;
}
.seo-section p, .seo-section li {
    color: #3d4f61;
    line-height: 1.75;
}
.seo-section .lead {
    font-size: 1.05rem;
    color: #3d4f61;
}
.seo-label {
    display: inline-block;
    background: var(--secondary);
    color: #fff;
    font-size: .65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    padding: 2px 10px;
    border-radius: 20px;
    margin-bottom: .6rem;
}
.vin-explainer {
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    font-family: 'Courier New', monospace;
    font-size: 1.3rem;
    letter-spacing: 4px;
    font-weight: 700;
    text-align: center;
    word-break: break-all;
}
.vin-explainer .vin-wmi  { color: #93c5fd; }
.vin-explainer .vin-vds  { color: #86efac; }
.vin-explainer .vin-chk  { color: #fde68a; }
.vin-explainer .vin-vis  { color: #f9a8d4; }
.vin-explainer small {
    display: block;
    font-family: 'Segoe UI', sans-serif;
    font-size: .7rem;
    letter-spacing: .05em;
    font-weight: 400;
    margin-top: .5rem;
    color: #8aa5bf;
}
.callout-box {
    background: #fff8ec;
    border-left: 4px solid var(--secondary);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 1rem 1.25rem;
    color: #4a3000;
    font-size: .92rem;
    line-height: 1.65;
}
.use-case-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 1.25rem 1.4rem;
    height: 100%;
    border-top: 3px solid var(--secondary);
    box-shadow: 0 1px 8px rgba(0,0,0,.07);
    transition: box-shadow .2s;
}
.use-case-card:hover { box-shadow: 0 4px 18px rgba(0,0,0,.12); }
.use-case-card .uc-icon { font-size: 1.8rem; margin-bottom: .6rem; display: block; }
.use-case-card h3 { font-size: .95rem; font-weight: 700; color: var(--primary); margin-bottom: .4rem; }
.use-case-card p { font-size: .85rem; color: #5a6a78; margin: 0; line-height: 1.6; }
.feature-item {
    display: flex;
    gap: .75rem;
    align-items: flex-start;
    padding: .75rem 0;
    border-bottom: 1px solid #e8edf3;
}
.feature-item:last-child { border-bottom: none; }
.feature-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 2px;
}
.feature-item strong { color: var(--primary); display: block; margin-bottom: .15rem; }
.feature-item span { font-size: .88rem; color: #5a6a78; }
.faq-section { background: #f0f4f8; padding: 3.5rem 0; }
.faq-section h2 { font-size: 1.5rem; font-weight: 700; color: var(--primary); margin-bottom: 1.5rem; }
.faq-section .accordion-button {
    font-weight: 600;
    color: var(--primary);
    font-size: .95rem;
}
.faq-section .accordion-button:not(.collapsed) { color: var(--primary); background: #fff; }
.faq-section .accordion-body { font-size: .9rem; color: #3d4f61; line-height: 1.7; }
.vin-struct-table th { background: var(--primary); color: #fff; }
.cta-section {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%);
    padding: 3rem 0;
    color: #fff;
    text-align: center;
}
.cta-section h2 { font-size: 1.6rem; font-weight: 700; }
.cta-section p { color: #8aa5bf; margin-bottom: 1.5rem; }
.btn-cta {
    background: var(--secondary);
    color: #fff;
    font-weight: 700;
    padding: .85rem 2.5rem;
    border-radius: 8px;
    font-size: 1.05rem;
    text-decoration: none;
    display: inline-block;
    transition: background .2s, transform .15s;
}
.btn-cta:hover { background: #d48f18; color: #fff; transform: translateY(-2px); }

@media (max-width: 768px) {
    .seo-section { padding: 2.5rem 0; }
    .seo-section h2 { font-size: 1.25rem; }
    .vin-explainer { font-size: 1rem; letter-spacing: 2px; padding: 1rem; }
    .faq-section { padding: 2.5rem 0; }
}

/* ── Nav links (Decodificador / Validador) ──────────────────── */
.nav-tool-links {
    display: flex;
    gap: .5rem;
    margin-left: 1.5rem;
}
.nav-tool-links a {
    color: #c7d4e0;
    text-decoration: none;
    font-size: .88rem;
    font-weight: 600;
    padding: .4rem .85rem;
    border-radius: 6px;
    transition: background .15s, color .15s;
}
.nav-tool-links a:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-tool-links a.active { color: #fff; background: var(--secondary); }

/* ── Validador de Chassi — blocos de detalhamento ───────────── */
.validation-block {
    border-radius: var(--radius);
    padding: 1.1rem 1.3rem;
    margin-bottom: .9rem;
    border: 1px solid;
    display: flex;
    align-items: flex-start;
    gap: .9rem;
}
.validation-block.is-ok {
    background: #f0fdf4;
    border-color: #86efac;
}
.validation-block.is-error {
    background: #fef2f2;
    border-color: #fca5a5;
}
.validation-block .validation-icon {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
}
.validation-block.is-ok .validation-icon     { background: #22c55e; }
.validation-block.is-error .validation-icon  { background: #ef4444; }
.validation-block h6 {
    font-weight: 700;
    margin-bottom: .2rem;
    color: var(--primary);
}
.validation-block.is-error h6 { color: #991b1b; }
.validation-block .validation-rule {
    font-size: .85rem;
    color: var(--text-muted);
    margin-bottom: .35rem;
}
.validation-block .validation-result {
    font-size: .9rem;
    font-weight: 600;
}
.validation-block.is-ok .validation-result    { color: #15803d; }
.validation-block.is-error .validation-result { color: #b91c1c; }