:root {
    --fn-navy: #102a43;
    --fn-navy-deep: #0a1d30;
    --fn-teal: #3d8c8c;
    --fn-teal-dark: #2a6b6b;
    --fn-teal-light: #5cbaab;
    --fn-copper: #c67c4e;
    --fn-copper-light: #e8a87c;
    --fn-gold: #d4a843;
    --fn-gold-light: #f5e6b8;
    --fn-bg-warm: #faf9f7;
    --fn-surface: #ffffff;
    --fn-border: #e2e6ea;
    --fn-text: #1f2937;
    --fn-text-secondary: #5a6577;
    --fn-text-muted: #8896a7;
    --fn-red: #c0392b;
    --fn-red-pale: #fbeae8;
    --fn-radius: 10px;
    --fn-font-editorial: 'Literata', Georgia, 'Times New Roman', serif;
    --fn-font-ui: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --fn-font-mono: 'JetBrains Mono', 'Consolas', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
    font-family: var(--fn-font-ui);
    color: var(--fn-text);
    background: var(--fn-bg-warm);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* ═══════════ SHELL ═══════════ */
.auth {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    min-height: 100vh;
}

/* ═══════════ BRAND PANEL ═══════════ */
.auth__brand {
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(2.5rem, 5vw, 4.5rem);
    color: #eaf2f1;
    background:
        radial-gradient(1200px 600px at 85% -10%, rgba(92,186,171,.22), transparent 55%),
        radial-gradient(900px 700px at -10% 110%, rgba(198,124,78,.20), transparent 50%),
        linear-gradient(155deg, var(--fn-navy-deep) 0%, var(--fn-navy) 45%, var(--fn-teal-dark) 130%);
    isolation: isolate;
}
/* guilloché / fine-line security-print texture */
.auth__brand::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        repeating-linear-gradient(60deg, rgba(255,255,255,.035) 0 1px, transparent 1px 9px),
        repeating-linear-gradient(-60deg, rgba(255,255,255,.03) 0 1px, transparent 1px 9px);
    mask-image: radial-gradient(120% 120% at 70% 30%, #000 35%, transparent 78%);
    z-index: -1;
    pointer-events: none;
}
/* fine grain */
.auth__brand::after {
    content: "";
    position: absolute; inset: 0;
    opacity: .5;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    z-index: -1;
    pointer-events: none;
}

.brand__top { display: flex; align-items: center; }
/* logo institucional branco (1082x189) sobre o painel escuro */
.brand__logo {
    height: 44px; width: auto; display: block;
    filter: drop-shadow(0 2px 10px rgba(0,0,0,.25));
}

.brand__body { max-width: 42rem; }
.brand__eyebrow {
    display: inline-flex; align-items: center; gap: .5rem;
    font-family: var(--fn-font-mono);
    font-size: .7rem; letter-spacing: .25em; text-transform: uppercase;
    color: var(--fn-gold-light);
    margin-bottom: 1.6rem;
}
.brand__eyebrow::before {
    content: ""; width: 26px; height: 1px;
    background: linear-gradient(90deg, var(--fn-gold), transparent);
}
.brand__title {
    max-width: 30rem;
    font-family: var(--fn-font-editorial);
    font-weight: 500;
    font-size: clamp(1.9rem, 3.4vw, 3rem);
    line-height: 1.12;
    letter-spacing: -.01em;
    color: #fff;
}
.brand__title em {
    font-style: italic;
    color: var(--fn-gold-light);
}
.brand__rule {
    width: 56px; height: 2px; margin: 1.8rem 0;
    background: linear-gradient(90deg, var(--fn-copper), var(--fn-gold));
    border-radius: 2px;
}
.brand__lede {
    max-width: 40rem;
    font-size: 1.02rem; line-height: 1.7;
    color: rgba(234,242,241,.82);
}

.brand__meta {
    display: flex; flex-wrap: wrap; gap: .55rem 1.6rem;
    font-family: var(--fn-font-mono);
    font-size: .72rem; letter-spacing: .08em;
    color: rgba(234,242,241,.55);
}
.brand__meta span { display: inline-flex; align-items: center; gap: .45rem; }
.brand__meta i { color: var(--fn-teal-light); font-size: .85rem; }

/* ═══════════ FORM PANEL ═══════════ */
.auth__panel {
    display: flex; align-items: center; justify-content: center;
    padding: clamp(2rem, 4vw, 3.5rem);
    background:
        radial-gradient(700px 420px at 110% 0%, rgba(61,140,140,.06), transparent 60%),
        var(--fn-bg-warm);
}
.auth__form { width: 100%; max-width: 25rem; }

.form__head { margin-bottom: 2rem; }
.form__kicker {
    font-family: var(--fn-font-mono);
    font-size: .68rem; letter-spacing: .24em; text-transform: uppercase;
    color: var(--fn-copper);
    margin-bottom: .7rem;
}
.form__title {
    font-family: var(--fn-font-editorial);
    font-weight: 600; font-size: 1.85rem; line-height: 1.15;
    color: var(--fn-navy);
}
.form__sub {
    margin-top: .55rem; font-size: .92rem; color: var(--fn-text-secondary);
}

.field { margin-bottom: 1.15rem; }
.field__label {
    display: block; font-size: .82rem; font-weight: 600;
    color: var(--fn-text); margin-bottom: .45rem; letter-spacing: .01em;
}
.field__wrap { position: relative; display: flex; align-items: center; }
.field__icon {
    position: absolute; left: .95rem;
    color: var(--fn-text-muted); font-size: 1.05rem;
    pointer-events: none; transition: color .18s ease;
}
.field__input {
    width: 100%;
    height: 50px;
    padding: 0 1rem 0 2.85rem;
    font-family: var(--fn-font-ui);
    font-size: .98rem;
    color: var(--fn-text);
    background: var(--fn-surface);
    border: 1.5px solid var(--fn-border);
    border-radius: var(--fn-radius);
    transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
    outline: none;
}
.field__input::placeholder { color: var(--fn-text-muted); opacity: .7; }
.field__input:hover { border-color: #cdd5dd; }
.field__input:focus {
    border-color: var(--fn-teal);
    box-shadow: 0 0 0 4px rgba(61,140,140,.14);
    background: #fff;
}
.field__wrap:focus-within .field__icon { color: var(--fn-teal); }

/* matrícula em fonte mono p/ leitura de código */
#funarpen_nr_matricula {
    font-family: var(--fn-font-mono);
    letter-spacing: .12em;
    font-size: 1.05rem;
}

.field__toggle {
    position: absolute; right: .65rem;
    display: grid; place-items: center;
    width: 34px; height: 34px;
    border: none; background: transparent;
    color: var(--fn-text-muted); cursor: pointer;
    border-radius: 7px; font-size: 1.05rem;
    transition: color .15s ease, background .15s ease;
}
.field__toggle:hover { color: var(--fn-teal-dark); background: rgba(61,140,140,.08); }

/* captcha — exibido só a partir da 4ª tentativa (após 3 senhas inválidas) */
.captcha { display: flex; flex-direction: column; gap: .6rem; }
.captcha__challenge { display: flex; align-items: center; gap: .6rem; }
.captcha__img {
    flex: 1 1 auto; line-height: 0;
    border: 1.5px solid var(--fn-border);
    border-radius: var(--fn-radius);
    overflow: hidden; background: var(--fn-navy);
}
.captcha__img svg { display: block; width: 100%; height: auto; }
.captcha__reload {
    flex: 0 0 auto;
    display: grid; place-items: center;
    width: 50px; height: 50px;
    border: 1.5px solid var(--fn-border);
    background: var(--fn-surface);
    color: var(--fn-text-secondary); cursor: pointer;
    border-radius: var(--fn-radius); font-size: 1.15rem;
    transition: color .15s ease, background .15s ease, border-color .15s ease;
}
.captcha__reload:hover {
    color: var(--fn-teal-dark);
    background: rgba(61,140,140,.08);
    border-color: var(--fn-teal);
}
#funarpen_captcha {
    font-family: var(--fn-font-mono);
    letter-spacing: .22em; text-transform: uppercase;
}

/* linha: lembrar + ajuda */
.form__row {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem; margin: .35rem 0 1.5rem;
}
.check { display: inline-flex; align-items: center; gap: .55rem; cursor: pointer; user-select: none; }
.check input { position: absolute; opacity: 0; width: 0; height: 0; }
.check__box {
    width: 20px; height: 20px; flex: 0 0 auto;
    border: 1.5px solid var(--fn-border); border-radius: 6px;
    display: grid; place-items: center;
    background: var(--fn-surface);
    transition: all .16s ease;
    color: #fff; font-size: .72rem;
}
.check__box i { opacity: 0; transform: scale(.5); transition: all .16s ease; }
.check input:checked + .check__box {
    background: var(--fn-teal); border-color: var(--fn-teal);
}
.check input:checked + .check__box i { opacity: 1; transform: scale(1); }
.check input:focus-visible + .check__box { box-shadow: 0 0 0 4px rgba(61,140,140,.18); }
.check__label { font-size: .85rem; color: var(--fn-text-secondary); }

.form__help { font-size: .85rem; color: var(--fn-teal-dark); text-decoration: none; font-weight: 500; }
.form__help:hover { text-decoration: underline; }

/* botão entrar */
.btn-entrar {
    position: relative; overflow: hidden;
    width: 100%; height: 52px;
    display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
    font-family: var(--fn-font-ui); font-weight: 600; font-size: 1rem; letter-spacing: .02em;
    color: #fff; cursor: pointer;
    border: none; border-radius: var(--fn-radius);
    background: linear-gradient(135deg, var(--fn-navy) 0%, var(--fn-teal-dark) 100%);
    box-shadow: 0 8px 22px rgba(16,42,67,.22);
    transition: transform .16s ease, box-shadow .16s ease;
}
.btn-entrar::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(135deg, transparent 30%, rgba(212,168,67,.35) 50%, transparent 70%);
    transform: translateX(-120%);
    transition: transform .6s ease;
}
.btn-entrar:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(16,42,67,.30); }
.btn-entrar:hover::after { transform: translateX(120%); }
.btn-entrar:active { transform: translateY(0); }
.btn-entrar i { font-size: 1.05rem; }

/* botão skip login (debug only — não aparece em PRD) */
#skipForm { margin-top: .75rem; }
.btn-skip-debug {
    width: 100%; height: 42px;
    display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
    font-family: var(--fn-font-ui); font-weight: 600; font-size: .88rem;
    color: #7c4f1a; cursor: pointer;
    background: rgba(245,188,80,.12);
    border: 1.5px dashed rgba(212,168,67,.55);
    border-radius: var(--fn-radius);
    transition: background .15s ease, border-color .15s ease;
}
.btn-skip-debug:hover { background: rgba(245,188,80,.22); border-color: var(--fn-gold); }
.btn-skip-debug i { color: var(--fn-gold); font-size: .95rem; }
.skip-badge {
    font-size: .68rem; font-weight: 700; letter-spacing: .06em;
    padding: .15em .45em; border-radius: 4px;
    background: var(--fn-gold); color: #fff;
}

/* mensagem de erro/aviso */
#msgBox { margin-top: 1.1rem; }
#msgBox .alert {
    display: flex; align-items: flex-start; gap: .6rem;
    padding: .8rem 1rem; border-radius: var(--fn-radius);
    font-size: .9rem; line-height: 1.45;
}
#msgBox .alert-danger {
    background: var(--fn-red-pale);
    color: #8a2a20;
    border: 1px solid rgba(192,57,43,.22);
}
#msgBox .alert::before {
    content: "\F33A"; /* bi-exclamation-triangle-fill */
    font-family: "bootstrap-icons"; flex: 0 0 auto; color: var(--fn-red);
}

/* rodapé do form */
.form__foot {
    margin-top: 2rem; padding-top: 1.4rem;
    border-top: 1px solid var(--fn-border);
    font-size: .8rem; color: var(--fn-text-muted);
    display: flex; flex-direction: column; gap: .35rem;
}
.form__foot a { color: var(--fn-teal-dark); text-decoration: none; }
.form__foot a:hover { text-decoration: underline; }

/* botão voltar (mobile/desktop) */
.brand__back {
    position: absolute; top: clamp(1.4rem, 3vw, 2.2rem); right: clamp(1.4rem, 3vw, 2.2rem);
    display: inline-flex; align-items: center; gap: .4rem;
    font-size: .8rem; color: rgba(234,242,241,.7); text-decoration: none;
    padding: .45rem .8rem; border-radius: 8px;
    border: 1px solid rgba(255,255,255,.14);
    transition: all .16s ease; z-index: 2;
}
.brand__back:hover { color: #fff; border-color: rgba(212,168,67,.5); background: rgba(255,255,255,.05); }

/* ═══════════ ANIMAÇÃO DE ENTRADA ═══════════ */
@keyframes fnRise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.reveal { opacity: 0; animation: fnRise .7s cubic-bezier(.2,.7,.2,1) forwards; }
.d1 { animation-delay: .05s; } .d2 { animation-delay: .14s; }
.d3 { animation-delay: .23s; } .d4 { animation-delay: .32s; }
.d5 { animation-delay: .41s; } .d6 { animation-delay: .50s; }
.d7 { animation-delay: .59s; }

@media (prefers-reduced-motion: reduce) {
    .reveal { animation: none; opacity: 1; }
    .btn-entrar, .field__input { transition: none; }
}

/* ═══════════ RESPONSIVO ═══════════ */
@media (max-width: 900px) {
    .auth { grid-template-columns: 1fr; }
    .auth__brand {
        min-height: auto;
        padding: 2.4rem 1.6rem 2.2rem;
        gap: 1.6rem;
    }
    .brand__lede, .brand__meta { display: none; }
    .brand__logo { height: 36px; }
    .brand__title { font-size: 1.55rem; }
    .brand__rule { margin: 1.1rem 0; }
    .auth__panel { padding: 2.2rem 1.5rem 3rem; }
    .brand__back { position: static; align-self: flex-start; margin-top: .4rem; }
}
@media (max-width: 420px) {
    .form__row { flex-direction: column; align-items: flex-start; gap: .85rem; }
}