/* ==========================================================================
   AUTENTICAÇÃO — login, cadastro, esqueci a senha, redefinir senha
   ==========================================================================

   UM ARQUIVO PARA AS QUATRO PÁGINAS
   ---------------------------------
   As 4 páginas duplicavam o mesmo CSS no `<style>` de cada uma: `.form-group`,
   `.btn-primary`, `.alert`, `@keyframes spin`, a media query de 768px -
   declarações idênticas, copiadas quatro vezes. Só o nome do wrapper, do card
   e do cabeçalho mudava (`.login-box`, `.register-box`, `.forgot-box`,
   `.reset-box`). Então aqui os quatro nomes são agrupados num seletor só, e o
   que é comum é escrito uma vez.

   ESPECIFICIDADE
   --------------
   O `<style>` de cada página vem DEPOIS deste arquivo no <head>, então
   `.login-box` de lá empataria e ganharia. Por isso tudo aqui é prefixado com
   `body` (0,1,1 contra 0,1,0) e as regras de elemento com `html body`.

   Estas 4 páginas NÃO têm menu nem footer: são telas isoladas. Por isso elas
   ganham aqui o brilho de fundo do hero, senão ficariam um card solto no
   escuro, sem nenhum laço com o resto do site.
   ========================================================================== */

html body {
    background: var(--aa-bg);
    color: var(--aa-text);
    min-height: 100vh;
}

/* ------------------------------------------------------------- ambiente --- */
body .login-container,
body .register-container,
body .forgot-container,
body .reset-container {
    position: relative;
    isolation: isolate;
    max-width: 100%;
    padding: var(--aa-7) var(--aa-5);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* brilho duotono, o mesmo do hero da home */
body .login-container::before,
body .register-container::before,
body .forgot-container::before,
body .reset-container::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(55% 50% at 50% 0%, var(--aa-cyan-glow) 0%, transparent 60%),
        radial-gradient(45% 45% at 85% 100%, var(--aa-violet-glow) 0%, transparent 70%);
    opacity: 0.4;
    pointer-events: none;
}

/* grade fina, com máscara para sumir nas bordas */
body .login-container::after,
body .register-container::after,
body .forgot-container::after,
body .reset-container::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(70% 60% at 50% 40%, #000 20%, transparent 85%);
    -webkit-mask-image: radial-gradient(70% 60% at 50% 40%, #000 20%, transparent 85%);
    pointer-events: none;
}

/* ----------------------------------------------------------------- card --- */
body .login-box,
body .register-box,
body .forgot-box,
body .reset-box {
    position: relative;
    background: linear-gradient(160deg, var(--aa-surface-2) 0%, var(--aa-surface) 70%);
    border: 1px solid var(--aa-line);
    border-radius: 0;
    clip-path: polygon(var(--aa-cut) 0, 100% 0, 100% calc(100% - var(--aa-cut)),
                       calc(100% - var(--aa-cut)) 100%, 0 100%, 0 var(--aa-cut));
    padding: var(--aa-7) var(--aa-6) var(--aa-6);
    width: 100%;
    max-width: 440px;
    box-shadow: var(--aa-shadow-forte);
    backdrop-filter: none;
}

/* barra de acento no topo do card */
body .login-box::before,
body .register-box::before,
body .forgot-box::before,
body .reset-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: var(--aa-cut);
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--aa-cyan), var(--aa-violet));
}

body .register-box {
    max-width: 480px;
}

/* -------------------------------------------------------------- cabeçalho - */
body .login-header,
body .register-header,
body .forgot-header,
body .reset-header {
    text-align: center;
    margin-bottom: var(--aa-6);
}

body .login-header h1,
body .register-header h1,
body .forgot-header h1,
body .reset-header h1 {
    font-family: var(--aa-display);
    font-size: clamp(1.6rem, 4vw, 2.1rem);
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--aa-text);
    margin: var(--aa-4) 0 var(--aa-2);
}

body .login-header p,
body .register-header p,
body .forgot-header p,
body .reset-header p {
    color: var(--aa-text-dim);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

body .login-header .logo-img,
body .register-header .logo-img,
body .forgot-header .logo-img,
body .reset-header .logo-img {
    height: 64px;
    width: auto;
    border-radius: 14px;
    filter: drop-shadow(0 10px 24px rgba(34, 229, 250, 0.22));
}

/* ------------------------------------------------------------------ abas -- */
body .tab-container {
    margin-bottom: var(--aa-5);
}

body .tab-buttons {
    display: flex;
    gap: 0;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--aa-line);
    border-radius: 0;
    padding: 0;
    margin-bottom: var(--aa-5);
}

body .tab-button {
    flex: 1;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--aa-text-faint);
    padding: var(--aa-3) var(--aa-4);
    border-radius: 0;
    cursor: pointer;
    font-family: var(--aa-display);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color var(--aa-fast), background var(--aa-fast),
                border-color var(--aa-fast);
    box-shadow: none;
}

body .tab-button:hover {
    color: var(--aa-text);
    background: rgba(255, 255, 255, 0.03);
}

/* a aba ativa é marcada por traço e cor, não por pílula preenchida: assim ela
   não compete visualmente com o botão de enviar, que é a ação principal */
body .tab-button.active {
    background: rgba(34, 229, 250, 0.07);
    color: var(--aa-cyan);
    border-bottom-color: var(--aa-cyan);
    box-shadow: none;
}

/* ------------------------------------------------------------ formulário -- */
body .form-group {
    margin-bottom: var(--aa-4);
}

body .form-group label {
    display: block;
    margin-bottom: var(--aa-2);
    font-family: var(--aa-display);
    font-size: 0.76rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--aa-text-dim);
}

body .form-group input {
    width: 100%;
    padding: var(--aa-3) var(--aa-4);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--aa-line-strong);
    border-radius: 0;
    color: var(--aa-text);
    font-size: 1rem;
    box-sizing: border-box;
    transition: border-color var(--aa-fast), background var(--aa-fast),
                box-shadow var(--aa-fast);
}

/* o foco era violeta #667eea, herdado de um tema anterior que não existe mais
   em nenhum outro lugar do site - agora é o ciano da marca */
body .form-group input:focus {
    outline: none;
    border-color: var(--aa-cyan);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 0 3px rgba(34, 229, 250, 0.15);
}

body .form-group input::placeholder {
    color: var(--aa-text-faint);
}

/* ------------------------------------------------------------- botões ----- */
body .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--aa-2);
    width: 100%;
    background: linear-gradient(135deg, var(--aa-cyan) 0%, #5af0ff 100%);
    border: 1px solid transparent;
    border-radius: 0;
    clip-path: polygon(var(--aa-cut) 0, 100% 0, 100% calc(100% - var(--aa-cut)),
                       calc(100% - var(--aa-cut)) 100%, 0 100%, 0 var(--aa-cut));
    padding: var(--aa-3) var(--aa-5);
    color: #04161a;
    font-family: var(--aa-display);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    text-decoration: none;
    margin-bottom: var(--aa-4);
    transition: transform var(--aa-fast), box-shadow var(--aa-fast);
}

body .btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px var(--aa-cyan-glow);
}

body .btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

body .discord-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--aa-3);
    width: 100%;
    padding: var(--aa-3) var(--aa-5);
    background: linear-gradient(135deg, var(--aa-discord) 0%, var(--aa-violet) 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 0;
    clip-path: polygon(var(--aa-cut) 0, 100% 0, 100% calc(100% - var(--aa-cut)),
                       calc(100% - var(--aa-cut)) 100%, 0 100%, 0 var(--aa-cut));
    font-family: var(--aa-display);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    box-sizing: border-box;
    transition: transform var(--aa-fast), box-shadow var(--aa-fast);
}

body .discord-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(88, 101, 242, 0.35);
}

/* -------------------------------------------------------------- avisos ---- */
body .alert {
    display: flex;
    align-items: flex-start;
    gap: var(--aa-2);
    padding: var(--aa-3) var(--aa-4);
    margin-bottom: var(--aa-4);
    border: 1px solid transparent;
    border-left-width: 3px;
    border-radius: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

body .alert-danger {
    background: rgba(255, 92, 122, 0.1);
    border-color: var(--aa-erro);
    color: #ffc2cd;
}

body .alert-success {
    background: rgba(50, 213, 131, 0.1);
    border-color: var(--aa-ok);
    color: #b6f2d3;
}

body .alert-info {
    background: rgba(34, 229, 250, 0.08);
    border-color: var(--aa-cyan);
    color: #bdf3fb;
}

/* --------------------------------------------- validação campo por campo -- */
body .feedback {
    display: block;
    margin-top: 6px;
    font-size: 0.8rem;
    line-height: 1.4;
}

body .feedback.valid {
    color: var(--aa-ok);
}

body .feedback.invalid {
    color: var(--aa-erro);
}

body .password-requirements {
    margin: var(--aa-2) 0 0;
    padding: var(--aa-3) var(--aa-4);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--aa-line);
    list-style: none;
    font-size: 0.8rem;
}

body .password-requirements li {
    position: relative;
    padding-left: var(--aa-4);
    margin-bottom: 4px;
    color: var(--aa-text-faint);
}

body .password-requirements li::before {
    content: '•';
    position: absolute;
    left: 0;
}

body .password-requirements li.valid {
    color: var(--aa-ok);
}

body .password-requirements li.valid::before {
    content: '✓';
}

body .password-requirements li.invalid {
    color: var(--aa-erro);
}

body .password-requirements li.invalid::before {
    content: '✕';
}

/* ---------------------------------------------------------------- links --- */
body .links {
    text-align: center;
    margin-top: var(--aa-4);
    padding-top: var(--aa-4);
    border-top: 1px solid var(--aa-line);
}

body .links a {
    color: var(--aa-text-dim);
    text-decoration: none;
    font-size: 0.88rem;
    line-height: 1.9;
    transition: color var(--aa-fast);
}

body .links a:hover {
    color: var(--aa-cyan);
}

/* -------------------------------------------------------------- captcha --- */
body .h-captcha {
    display: flex;
    justify-content: center;
}

/* ------------------------------------------------------------ carregando -- */
body .loading {
    display: none;
    text-align: center;
    color: var(--aa-cyan);
    font-family: var(--aa-display);
    font-size: 0.84rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

body .loading i {
    animation: spin 1s linear infinite;
}

/* ---------------------------------------------------------- responsivo ---- */
@media (max-width: 768px) {
    body .login-container,
    body .register-container,
    body .forgot-container,
    body .reset-container {
        padding: var(--aa-5) var(--aa-4);
    }

    body .login-box,
    body .register-box,
    body .forgot-box,
    body .reset-box {
        padding: var(--aa-6) var(--aa-5) var(--aa-5);
    }

    body .tab-button {
        font-size: 0.74rem;
        padding: var(--aa-3) var(--aa-2);
    }
}