/* Instituto Francisco de Assis — Login
   Estética editorial/institucional; única animação é o coração da logo. */

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

html {
    background: #0d0d0f;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

:root {
    --red:         #C81E2C;
    --red-hover:   #a51625;
    --red-soft:    rgba(200, 30, 44, 0.10);

    --bg:          #0d0d0f;
    --text:        #ece9e2;
    --text-strong: #ffffff;
    --muted:       rgba(236, 233, 226, 0.50);
    --faint:       rgba(236, 233, 226, 0.28);

    --hair:        rgba(236, 233, 226, 0.08);
    --hair-mid:    rgba(236, 233, 226, 0.18);

    --error:       #ff6b7a;

    --font-serif:  'Archivo', Georgia, 'Times New Roman', serif;
    --font-sans:   'IBM Plex Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

body {
    font-family: var(--font-sans);
    color: var(--text);
    background: var(--bg);
    /* Vinheta tênue — só o suficiente para fazer o miolo respirar */
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(200,30,44,0.07) 0%, transparent 60%),
        radial-gradient(ellipse 80% 60% at 50% 115%, rgba(0,0,0,0.55)    0%, transparent 65%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: 15px;
    line-height: 1.5;
}

/* Eixo vertical fino — referência arquitetônica, não enfeite */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image: linear-gradient(to right, var(--hair) 1px, transparent 1px);
    background-size: 1px 100%;
    background-position: 50% 0;
    background-repeat: no-repeat;
    opacity: 0.6;
}

/* Quadro do login */
.login-frame {
    position: relative;
    z-index: 1;
    flex: 1;
    width: 100%;
    max-width: 460px;
    margin: 0 auto;
    padding: 88px 32px 28px;
    display: flex;
    flex-direction: column;
}

.login-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Logo (coração mantido) */
.brand-mark { margin-bottom: 28px; }

.brand-logo {
    width: 108px;
    height: 108px;
    object-fit: contain;
    animation: heartbeat 1.8s ease-in-out infinite;
    will-change: transform;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1);    }
    14%      { transform: scale(1.10); }
    28%      { transform: scale(1);    }
    42%      { transform: scale(1.07); }
    56%      { transform: scale(1);    }
}

/* Marca tipográfica */
.brand-text { margin-bottom: 56px; }

.brand-eyebrow {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 14px;
}

.brand-name {
    font-family: var(--font-serif);
    font-size: 46px;
    font-weight: 800;
    line-height: 0.98;
    letter-spacing: -0.025em;
    color: var(--text-strong);
    margin-bottom: 22px;
}

.brand-rule {
    width: 54px;
    height: 2px;
    background: var(--red);
}

/* Formulário */
.login-form { display: flex; flex-direction: column; }

.form-eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--hair);
}
.eyebrow-bullet {
    width: 6px; height: 6px;
    background: var(--red);
    flex-shrink: 0;
}

.field {
    position: relative;
    padding-bottom: 22px;
}

.field label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.4px;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 10px;
    transition: color 0.2s;
}

.field input {
    width: 100%;
    height: 38px;
    background: transparent;
    border: none;
    border-bottom: 1.5px solid var(--hair-mid);
    color: var(--text-strong);
    font-family: inherit;
    font-size: 16px; /* ≥16px evita zoom no iOS */
    font-weight: 400;
    padding: 0 36px 8px 0;
    outline: none;
    transition: border-color 0.25s, color 0.2s;
    border-radius: 0;
}

.field input::placeholder {
    color: rgba(236, 233, 226, 0.18);
    font-weight: 300;
    letter-spacing: 0.5px;
}

.field input:focus {
    border-bottom-color: var(--red);
}
.field input:focus + label,
.field:focus-within label {
    color: var(--text);
}

/* Anula amarelo do autofill do Chrome */
.field input:-webkit-autofill,
.field input:-webkit-autofill:hover,
.field input:-webkit-autofill:focus,
.field input:-webkit-autofill:active {
    -webkit-text-fill-color: var(--text-strong);
    -webkit-box-shadow: 0 0 0 1000px var(--bg) inset;
    caret-color: var(--text-strong);
    transition: background-color 99999s ease-in-out 0s;
}

/* Botão olhinho (senha) */
.toggle-pw {
    position: absolute;
    right: -4px;
    bottom: 26px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--muted);
    padding: 6px;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.toggle-pw:hover { color: var(--text-strong); }
.toggle-pw:focus-visible {
    outline: 1px solid var(--red);
    outline-offset: 2px;
}

/* Lembrar de mim */
.remember {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--muted);
    cursor: pointer;
    user-select: none;
    margin: 6px 0 30px;
    transition: color 0.2s;
    align-self: flex-start;
}
.remember:hover { color: var(--text); }

.remember input {
    position: absolute;
    opacity: 0;
    width: 0; height: 0;
}

.remember-box {
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--hair-mid);
    background: transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    flex-shrink: 0;
}
.remember:hover .remember-box { border-color: var(--faint); }
.remember input:checked + .remember-box {
    background: var(--red);
    border-color: var(--red);
    color: #fff;
}
.remember input:focus-visible + .remember-box {
    outline: 1px solid var(--red);
    outline-offset: 2px;
}

/* Mensagem de erro */
.error-box {
    display: none;
    font-size: 13px;
    color: var(--error);
    padding: 11px 14px;
    background: rgba(255, 107, 122, 0.05);
    border-left: 2px solid var(--error);
    margin-bottom: 22px;
    line-height: 1.4;
}
.error-box.show { display: block; animation: errorIn 0.25s ease-out; }
@keyframes errorIn {
    from { opacity: 0; transform: translateX(-4px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* Botão Entrar */
.btn-submit {
    position: relative;
    width: 100%;
    height: 52px;
    background: var(--red);
    color: #fff;
    border: none;
    border-radius: 0;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.2s, transform 0.08s, box-shadow 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    overflow: hidden;
}
.btn-submit::after {
    /* Filete interno claro — referência editorial */
    content: '';
    position: absolute;
    inset: 4px;
    border: 1px solid rgba(255,255,255,0.12);
    pointer-events: none;
}
.btn-submit:hover:not(:disabled) {
    background: var(--red-hover);
    box-shadow: 0 8px 24px -8px rgba(200,30,44,0.5);
}
.btn-submit:active:not(:disabled)  { transform: scale(0.995); }
.btn-submit:disabled { opacity: 0.7; cursor: not-allowed; }

.btn-arrow {
    font-size: 18px;
    line-height: 1;
    font-weight: 400;
    transition: transform 0.22s;
}
.btn-submit:hover:not(:disabled) .btn-arrow { transform: translateX(5px); }

.btn-loader {
    display: none;
    width: 16px; height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.btn-submit.loading .btn-label,
.btn-submit.loading .btn-arrow  { display: none; }
.btn-submit.loading .btn-loader { display: inline-block; }

/* Rodapé */
.login-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 36px 0 4px;
    font-size: 10.5px;
    color: var(--faint);
    letter-spacing: 1.2px;
    text-transform: uppercase;
}
.footer-dot { opacity: 0.5; }

/* Foco visível geral (acessibilidade) */
.btn-submit:focus-visible,
.toggle-pw:focus-visible { outline: 2px solid var(--text); outline-offset: 2px; }

/* Responsivo */
@media (max-width: 480px) {
    .login-frame { padding: 72px 22px 22px; }
    .brand-name  { font-size: 38px; }
    .brand-text  { margin-bottom: 44px; }
}

@media (max-width: 360px) {
    .brand-name { font-size: 34px; }
}

@media (max-height: 720px) {
    .login-frame { padding-top: 56px; }
    .brand-text  { margin-bottom: 32px; }
}

@media (prefers-reduced-motion: reduce) {
    .brand-logo { animation: none; }
    *, *::before, *::after { transition-duration: 0.01ms !important; }
}