/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --navy:    #1A3C6E;
    --blue:    #1E88E5;
    --cyan:    #29B6F6;
    --light:   #E3F2FD;
    --bg:      #F0F4F8;
    --white:   #FFFFFF;
    --text:    #1A2B3C;
    --muted:   #6B839A;
    --success: #2E7D32;
    --warn:    #E65100;
    --error:   #B71C1C;
    --radius:  8px;
    --shadow:  0 2px 12px rgba(26,60,110,.13);
    --sidebar-w: 280px;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Topbar ───────────────────────────────────────────────── */
.topbar {
    background: var(--navy);
    height: 64px;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,.25);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar img.logo {
    height: 44px;
    width: auto;
}

.topbar .brand {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.topbar .brand-name {
    color: var(--white);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: .03em;
}

.topbar .brand-sub {
    color: var(--cyan);
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.topbar .page-title {
    margin-left: auto;
    color: rgba(255,255,255,.65);
    font-size: .85rem;
    letter-spacing: .04em;
}

/* ── Layout body ──────────────────────────────────────────── */
.layout {
    display: flex;
    flex: 1;
    min-height: 0;
}

/* ── Sidebar ──────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    background: var(--navy);
    padding: 1.75rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-height: calc(100vh - 64px);
}

.sidebar-section-title {
    color: var(--cyan);
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    margin-bottom: .6rem;
    padding-bottom: .4rem;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

/* Upload fields */
.upload-group {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.upload-field label {
    display: flex;
    align-items: center;
    gap: .5rem;
    color: rgba(255,255,255,.85);
    font-size: .82rem;
    font-weight: 600;
    margin-bottom: .45rem;
    letter-spacing: .01em;
}

.upload-field label .icon {
    width: 18px;
    height: 18px;
    fill: var(--cyan);
    flex-shrink: 0;
}

.upload-field .dropzone {
    background: rgba(255,255,255,.07);
    border: 1.5px dashed rgba(41,182,246,.45);
    border-radius: var(--radius);
    padding: .9rem .75rem;
    text-align: center;
    cursor: pointer;
    transition: background .2s, border-color .2s;
    position: relative;
}

.upload-field .dropzone:hover {
    background: rgba(41,182,246,.12);
    border-color: var(--cyan);
}

.upload-field .dropzone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.upload-field .dropzone .dz-text {
    color: rgba(255,255,255,.55);
    font-size: .75rem;
    pointer-events: none;
}

.upload-field .dropzone .dz-filename {
    color: var(--cyan);
    font-size: .78rem;
    font-weight: 600;
    word-break: break-all;
    margin-top: .2rem;
}

/* Analyze button */
.btn-analisar {
    width: 100%;
    background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
    color: var(--white);
    border: none;
    padding: .8rem 1rem;
    border-radius: var(--radius);
    font-size: .92rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: .04em;
    transition: opacity .2s, transform .1s;
    box-shadow: 0 3px 10px rgba(30,136,229,.35);
}

.btn-analisar:hover  { opacity: .92; }
.btn-analisar:active { transform: scale(.98); }
.btn-analisar:disabled { opacity: .5; cursor: not-allowed; }

/* Sidebar info box */
.sidebar-info {
    background: rgba(255,255,255,.06);
    border-left: 3px solid var(--cyan);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: .75rem;
    font-size: .75rem;
    color: rgba(255,255,255,.55);
    line-height: 1.5;
    margin-top: auto;
}

/* ── Main content ─────────────────────────────────────────── */
.main {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

/* Welcome / placeholder */
.welcome-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 3rem 2rem;
    text-align: center;
    color: var(--muted);
}

.welcome-card .welcome-icon {
    width: 64px;
    height: 64px;
    fill: var(--light);
    margin: 0 auto 1rem;
    display: block;
    stroke: var(--blue);
    stroke-width: 1.2;
}

.welcome-card h2 { color: var(--navy); margin-bottom: .5rem; font-size: 1.2rem; }
.welcome-card p  { font-size: .9rem; max-width: 360px; margin: 0 auto; }

/* Alertas */
.alertas { display: flex; flex-direction: column; gap: .5rem; }
.alerta {
    background: #FFF8E1;
    border: 1px solid #FFD54F;
    padding: .7rem 1rem;
    border-radius: var(--radius);
    color: #6D4C00;
    font-size: .88rem;
}

/* ── Resultado: cards de resumo ───────────────────────────── */
.resumo {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.25rem 1rem;
    box-shadow: var(--shadow);
    text-align: center;
    border-top: 4px solid var(--blue);
    transition: transform .15s;
}
.card:hover { transform: translateY(-2px); }
.card.ok    { border-top-color: var(--success); }
.card.warn  { border-top-color: var(--warn); }
.card.erro  { border-top-color: var(--error); }

.card-valor {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--navy);
    line-height: 1;
}
.card.ok   .card-valor { color: var(--success); }
.card.warn .card-valor { color: var(--warn); }
.card.erro .card-valor { color: var(--error); }

.card-label {
    display: block;
    font-size: .75rem;
    color: var(--muted);
    margin-top: .45rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
}

/* Mensagem info */
.mensagem-info {
    background: var(--light);
    border-left: 4px solid var(--blue);
    padding: .85rem 1rem;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: .88rem;
    color: var(--navy);
}

/* Ações de download */
.acoes {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--success);
    color: var(--white);
    padding: .75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-size: .9rem;
    font-weight: 700;
    transition: opacity .2s;
    box-shadow: 0 2px 8px rgba(46,125,50,.3);
}
.btn-download:hover { opacity: .88; }

.btn-voltar {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--white);
    color: var(--navy);
    padding: .75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-size: .9rem;
    font-weight: 600;
    border: 1.5px solid var(--navy);
    transition: background .2s;
}
.btn-voltar:hover { background: var(--light); }

/* ── Section heading ──────────────────────────────────────── */
.section-heading {
    font-size: .78rem;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .1em;
    margin-bottom: .25rem;
}

/* ── Footer ───────────────────────────────────────────────── */
footer {
    background: var(--navy);
    color: rgba(255,255,255,.4);
    text-align: center;
    padding: .75rem;
    font-size: .78rem;
}

/* ── Resultado header ─────────────────────────────────────── */
.resultado-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .75rem;
    background: var(--white);
    border-radius: var(--radius);
    padding: .9rem 1.25rem;
    box-shadow: var(--shadow);
}

.resultado-meta { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }

.badge-periodo {
    background: var(--light);
    color: var(--navy);
    font-size: .8rem;
    font-weight: 600;
    padding: .3rem .75rem;
    border-radius: 20px;
    border: 1px solid #bcd3ee;
}

.badge-emissao {
    font-size: .88rem;
    color: var(--muted);
}
.badge-emissao strong { color: var(--navy); }

/* ── Checks grid ──────────────────────────────────────────── */
.checks-grid {
    display: flex;
    flex-direction: column;
    gap: .6rem;
}

.check-item {
    display: flex;
    align-items: flex-start;
    gap: .85rem;
    background: var(--white);
    border-radius: var(--radius);
    padding: .85rem 1rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--blue);
}
.check-item.check-ok    { border-left-color: var(--success); }
.check-item.check-alerta{ border-left-color: var(--warn); }
.check-item.check-erro  { border-left-color: var(--error); }

.check-icon {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--blue);
    color: var(--white);
    font-size: .85rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.check-ok   .check-icon { background: var(--success); }
.check-alerta .check-icon { background: var(--warn); }
.check-erro .check-icon { background: var(--error); }

.check-item > div {
    display: flex;
    flex-direction: column;
    gap: .2rem;
}
.check-item strong { font-size: .88rem; color: var(--navy); }
.check-item span   { font-size: .82rem; color: var(--muted); line-height: 1.4; }

/* ── Distribuição de atrasos ──────────────────────────────── */
.dist-atraso {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    box-shadow: var(--shadow);
    margin-top: .75rem;
}
.dist-title { font-size: .8rem; color: var(--muted); margin-bottom: .75rem; font-weight: 600; }
.dist-bars  { display: flex; flex-direction: column; gap: .4rem; }

.dist-bar-row {
    display: grid;
    grid-template-columns: 90px 1fr 40px;
    align-items: center;
    gap: .5rem;
}
.dist-label { font-size: .78rem; color: var(--navy); font-weight: 600; text-align: right; }
.dist-bar-wrap { background: var(--bg); border-radius: 4px; height: 14px; overflow: hidden; }
.dist-bar { height: 100%; border-radius: 4px; min-width: 4px; transition: width .3s; }
.dist-bar-ok   { background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.dist-bar-warn { background: linear-gradient(90deg, var(--warn), #FFB74D); }
.dist-qt { font-size: .78rem; color: var(--muted); font-weight: 600; }
.dist-nota { font-size: .72rem; color: var(--muted); margin-top: .75rem; font-style: italic; }

/* ── Btn download na sidebar ──────────────────────────────── */
.btn-download-side {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: var(--success);
    color: var(--white);
    padding: .65rem 1rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-size: .82rem;
    font-weight: 700;
    transition: opacity .2s;
    justify-content: center;
}
.btn-download-side:hover { opacity: .88; }

/* ── Spinner ──────────────────────────────────────────────── */
.spinner-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(26,60,110,.35);
    z-index: 200;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
    color: var(--white);
    font-weight: 600;
    font-size: 1rem;
}
.spinner-overlay.active { display: flex; }

.spinner {
    width: 48px;
    height: 48px;
    border: 5px solid rgba(255,255,255,.2);
    border-top-color: var(--cyan);
    border-radius: 50%;
    animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
    .layout { flex-direction: column; }
    .sidebar { width: 100%; min-height: auto; }
    .main { padding: 1rem; }
    .topbar .page-title { display: none; }
}