/* Estilos base + layout autenticado — SinTechAI Helpdesk */

:root {
    --cor-fundo: #dfe9f4;
    --cor-superficie: #ffffff;
    --cor-texto: #1a2b3c;
    --cor-texto-suave: #4f6478;
    --cor-borda: #c9d7e6;
    --cor-primaria: #1b5f8f;
    --cor-primaria-hover: #13466b;
    --cor-primaria-clara: #2f8fc4;
    --cor-lateral: #0c2a42;
    --cor-lateral-hover: #1a4f78;
    --cor-sucesso: #0f7a45;
    --cor-sucesso-hover: #0b5f35;
    --cor-sucesso-bg: #e3f5ea;
    --cor-sucesso-texto: #0f5132;
    --cor-info: #0e7490;
    --cor-info-hover: #0a5c72;
    --cor-info-bg: #e0f7fa;
    --cor-perigo: #b42318;
    --cor-perigo-hover: #912018;
    --cor-erro-bg: #fde8e8;
    --cor-erro-texto: #9b1c1c;
    --cor-aviso: #b54708;
    --cor-aviso-bg: #fff6dd;
    --cor-aviso-texto: #7a5b00;
    --cor-neutro: #475569;
    --cor-neutro-hover: #334155;
    --gradiente-fundo:
        radial-gradient(ellipse 70% 50% at 0% 0%, rgba(47, 143, 196, 0.28), transparent 55%),
        radial-gradient(ellipse 55% 45% at 100% 10%, rgba(14, 116, 144, 0.18), transparent 50%),
        radial-gradient(ellipse 50% 40% at 80% 100%, rgba(15, 122, 69, 0.08), transparent 45%),
        linear-gradient(165deg, #eaf3fb 0%, #dce8f4 45%, #e8f1f8 100%);
    --gradiente-lateral:
        linear-gradient(165deg, #1a4d73 0%, #0f2f4a 42%, #0a2238 78%, #0e3d58 100%);
    --gradiente-cabecalho:
        linear-gradient(105deg, rgba(255, 255, 255, 0.94) 0%, rgba(232, 243, 252, 0.9) 55%, rgba(224, 240, 246, 0.92) 100%);
    --gradiente-marca: linear-gradient(110deg, #13466b 0%, #1b5f8f 40%, #2f8fc4 75%, #0e7490 100%);
    --gradiente-primario: linear-gradient(115deg, #13466b 0%, #1b5f8f 45%, #2f8fc4 100%);
    --gradiente-primario-hover: linear-gradient(115deg, #0f3552 0%, #13466b 50%, #1b5f8f 100%);
    --gradiente-info: linear-gradient(115deg, #0a5c72 0%, #0e7490 45%, #22b8cf 100%);
    --gradiente-sucesso: linear-gradient(115deg, #0b5f35 0%, #0f7a45 45%, #22a861 100%);
    --gradiente-perigo: linear-gradient(115deg, #912018 0%, #b42318 50%, #e03b2f 100%);
    --gradiente-neutro: linear-gradient(115deg, #334155 0%, #475569 50%, #64748b 100%);
    --gradiente-ativo: linear-gradient(90deg, rgba(47, 143, 196, 0.72) 0%, rgba(14, 116, 144, 0.28) 100%);
    --raio: 14px;
    --raio-sm: 10px;
    --raio-pill: 999px;
    --sombra: 0 14px 36px rgba(20, 53, 82, 0.1);
    --sombra-forte: 0 22px 48px rgba(20, 53, 82, 0.16);
    --fonte: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    --largura-menu: 268px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--fonte);
    color: var(--cor-texto);
    background: var(--gradiente-fundo);
    background-attachment: fixed;
    min-height: 100vh;
}

a {
    color: var(--cor-primaria);
}

.alerta {
    padding: 14px 16px;
    border-radius: var(--raio-sm);
    margin-bottom: 20px;
    font-weight: 600;
    border: 1px solid transparent;
}

.alerta-sucesso {
    background: linear-gradient(120deg, #e3f5ea, #edfaf2);
    color: var(--cor-sucesso-texto);
    border-color: #b7e4c7;
}

.alerta-erro {
    background: linear-gradient(120deg, #fde8e8, #fff1f1);
    color: var(--cor-erro-texto);
    border-color: #f5c2c2;
}

.alerta-aviso {
    background: linear-gradient(120deg, #fff6dd, #fffaf0);
    color: var(--cor-aviso-texto);
    border-color: #f0d78c;
}

.lista-erros {
    margin: 0;
    padding-left: 18px;
}

/* Botões — variantes por intenção de UX */
.botao {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 18px;
    border-radius: var(--raio-pill);
    background: var(--gradiente-primario);
    color: #fff;
    text-decoration: none;
    border: 1px solid transparent;
    font-weight: 700;
    cursor: pointer;
    font: inherit;
    line-height: 1.2;
    box-shadow: 0 8px 18px rgba(27, 95, 143, 0.24);
    transition: background 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease, border-color 0.15s ease, filter 0.15s ease;
}

.botao:hover {
    background: var(--gradiente-primario-hover);
    color: #fff;
    filter: brightness(1.03);
}

.botao:disabled,
.botao[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
    filter: none;
}

.botao-primario {
    background: var(--gradiente-primario);
    color: #fff;
    box-shadow: 0 8px 18px rgba(27, 95, 143, 0.24);
}

.botao-primario:hover {
    background: var(--gradiente-primario-hover);
}

.botao-secundario {
    background: linear-gradient(180deg, #ffffff 0%, #f2f7fc 100%);
    color: var(--cor-primaria);
    border-color: #b8c9da;
    box-shadow: none;
}

.botao-secundario:hover {
    background: linear-gradient(180deg, #f7fbff 0%, #e8f1f9 100%);
    color: var(--cor-primaria-hover);
    border-color: var(--cor-primaria);
}

.botao-info {
    background: var(--gradiente-info);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 18px rgba(14, 116, 144, 0.24);
}

.botao-info:hover {
    background: linear-gradient(115deg, #084a5c 0%, #0a5c72 50%, #0e7490 100%);
    color: #fff;
}

.botao-sucesso {
    background: var(--gradiente-sucesso);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 18px rgba(15, 122, 69, 0.24);
}

.botao-sucesso:hover {
    background: linear-gradient(115deg, #094a2a 0%, #0b5f35 50%, #0f7a45 100%);
    color: #fff;
}

.botao-perigo {
    background: var(--gradiente-perigo);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 18px rgba(180, 35, 24, 0.24);
}

.botao-perigo:hover {
    background: linear-gradient(115deg, #7a1b14 0%, #912018 50%, #b42318 100%);
    color: #fff;
}

.botao-neutro {
    background: var(--gradiente-neutro);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 18px rgba(71, 85, 105, 0.22);
}

.botao-neutro:hover {
    background: linear-gradient(115deg, #243041 0%, #334155 50%, #475569 100%);
    color: #fff;
}

.botao-largo {
    width: 100%;
}

.etiqueta {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--raio-pill);
    font-size: 0.75rem;
    font-weight: 700;
    background: linear-gradient(120deg, #e4f1fb, #dff4f7);
    color: var(--cor-primaria);
}

.etiqueta-perfil {
    background: var(--gradiente-primario);
    color: #fff;
}

/* Login — layout partido (formulário + painel visual) */
.pagina-login {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 40px 24px;
    overflow: hidden;
    background:
        radial-gradient(ellipse 55% 45% at 8% 12%, rgba(47, 143, 196, 0.45), transparent 60%),
        radial-gradient(ellipse 50% 40% at 92% 88%, rgba(14, 116, 144, 0.35), transparent 55%),
        linear-gradient(145deg, #cfe0f0 0%, #e8f1f8 45%, #d5e8f2 100%);
}

.login-decoracao {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.login-circulo {
    position: absolute;
    width: min(420px, 55vw);
    height: min(420px, 55vw);
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #3d7eb5 0%, #1f4e79 55%, #143552 100%);
    opacity: 0.9;
}

.login-circulo-tl {
    top: -18%;
    left: -10%;
}

.login-circulo-br {
    right: -12%;
    bottom: -20%;
    background: radial-gradient(circle at 40% 40%, #2a6a9e 0%, #1f4e79 50%, #0d2438 100%);
}

.cartao-login-split {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: min(920px, 100%);
    min-height: 540px;
    background: #fff;
    border-radius: 22px;
    overflow: hidden;
    box-shadow: 0 28px 60px rgba(20, 53, 82, 0.18);
}

.login-painel-form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 48px 44px;
}

.login-cabecalho {
    margin-bottom: 28px;
    text-align: center;
}

.login-welcome {
    margin: 0 0 8px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #8a97a6;
}

.login-marca {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 0 0 12px;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #1f4e79;
}

.login-marca-logo {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 10px 24px rgba(15, 45, 69, 0.22);
    flex-shrink: 0;
}

.login-marca-texto {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    text-align: left;
}

.login-marca-texto strong {
    font-size: 1.85rem;
    letter-spacing: -0.03em;
    background: var(--gradiente-marca);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.1;
}

.login-marca-texto span {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #8a97a6;
}

.login-subtitulo {
    margin: 0 auto;
    max-width: 320px;
    color: #8a97a6;
    font-size: 0.92rem;
    line-height: 1.5;
}

.formulario-login {
    gap: 14px;
}

.campo-icone {
    position: relative;
}

.campo-icone input {
    width: 100%;
    padding: 14px 18px 14px 46px;
    border: 1px solid #d5dde6;
    border-radius: 999px;
    background: #fff;
    font: inherit;
    color: var(--cor-texto);
}

.campo-icone input:focus {
    outline: none;
    border-color: #1f4e79;
    box-shadow: 0 0 0 3px rgba(31, 78, 121, 0.15);
}

.campo-icone-esquerda {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: #9aa6b2;
    pointer-events: none;
}

.campo-icone-esquerda svg {
    width: 100%;
    height: 100%;
    display: block;
}

.botao-login {
    width: 100%;
    margin-top: 6px;
    padding: 14px 18px;
    border: none;
    border-radius: 999px;
    background: var(--gradiente-primario);
    color: #fff;
    font: inherit;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    box-shadow: 0 10px 22px rgba(27, 95, 143, 0.3);
}

.botao-login:hover {
    background: var(--gradiente-primario-hover);
}

.login-nota {
    margin: 20px 0 0;
    text-align: center;
    color: #8a97a6;
    font-size: 0.86rem;
}

.login-painel-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 40px;
    color: #fff;
    text-align: center;
    background:
        linear-gradient(155deg, rgba(12, 42, 66, 0.88) 0%, rgba(27, 95, 143, 0.78) 48%, rgba(14, 116, 144, 0.7) 100%),
        radial-gradient(circle at 28% 32%, rgba(168, 212, 240, 0.35) 0%, transparent 42%),
        radial-gradient(circle at 78% 72%, rgba(47, 143, 196, 0.45) 0%, #0c2a42 60%);
}

.login-painel-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, transparent 55%, rgba(8, 24, 40, 0.35) 100%),
        radial-gradient(ellipse 90% 40% at 50% 100%, rgba(255, 180, 80, 0.18), transparent 60%);
    pointer-events: none;
}

.login-visual-conteudo {
    position: relative;
    z-index: 1;
    max-width: 300px;
}

.login-visual-marca {
    width: 72px;
    height: 72px;
    margin: 0 auto 18px;
    display: grid;
    place-items: center;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.login-visual-marca img {
    width: 48px;
    height: 48px;
    display: block;
    border-radius: 12px;
}

.login-visual-conteudo h2 {
    margin: 0 0 14px;
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.login-visual-conteudo p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.92);
}

.login-visual-docente {
    margin-top: 16px !important;
    font-weight: 600;
    color: #fff !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 860px) {
    .cartao-login-split {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .login-painel-visual {
        min-height: 260px;
        order: -1;
        padding: 36px 28px;
    }

    .login-painel-form {
        padding: 36px 28px 40px;
    }
}

@media (max-width: 480px) {
    .pagina-login {
        padding: 20px 14px;
    }

    .login-marca {
        font-size: 1.65rem;
    }

    .login-marca-logo {
        width: 52px;
        height: 52px;
        border-radius: 14px;
    }

    .login-marca-texto strong {
        font-size: 1.45rem;
    }
}

/* Shell autenticado */
.app-shell {
    display: flex;
    min-height: 100vh;
    background: var(--gradiente-fundo);
    background-attachment: fixed;
}

.barra-lateral {
    width: var(--largura-menu);
    background:
        radial-gradient(ellipse 90% 55% at 0% 0%, rgba(47, 143, 196, 0.38), transparent 58%),
        radial-gradient(ellipse 70% 45% at 100% 100%, rgba(14, 116, 144, 0.28), transparent 55%),
        var(--gradiente-lateral);
    color: #fff;
    display: flex;
    flex-direction: column;
    padding: 18px 0 16px;
    position: sticky;
    top: 0;
    height: 100vh;
    box-shadow: 8px 0 28px rgba(8, 24, 40, 0.22);
    z-index: 20;
}

.marca-lateral {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 4px 18px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.marca-lateral-logo {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.22);
    background: #0f2d45;
}

.marca-lateral-texto {
    min-width: 0;
}

.marca-lateral strong {
    display: block;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.marca-lateral span {
    display: inline-block;
    margin-top: 5px;
    font-size: 0.74rem;
    opacity: 0.95;
    padding: 2px 8px;
    border-radius: var(--raio-pill);
    background: linear-gradient(120deg, rgba(47, 143, 196, 0.35), rgba(14, 116, 144, 0.28));
    letter-spacing: 0.02em;
}

.menu-lateral {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 14px 12px;
    flex: 1;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}

.menu-lateral::-webkit-scrollbar {
    width: 6px;
}

.menu-lateral::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.22);
    border-radius: 999px;
}

.menu-grupo {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.menu-categoria {
    margin: 0;
    padding: 4px 12px 6px;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(201, 220, 236, 0.62);
}

.menu-lateral a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #d9e6f2;
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 11px;
    font-weight: 600;
    font-size: 0.94rem;
    transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.menu-lateral a:hover {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.05));
    color: #fff;
}

.menu-lateral a.ativo {
    position: relative;
    background: var(--gradiente-ativo);
    color: #fff;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
}

.menu-lateral a.ativo::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: linear-gradient(180deg, #a8d4f0, #2f8fc4);
}

.menu-lateral a.menu-desativado {
    opacity: 0.45;
    cursor: not-allowed;
}

.icone-menu {
    display: inline-grid;
    place-items: center;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    opacity: 0.9;
}

.icone-menu svg {
    width: 100%;
    height: 100%;
    display: block;
}

.menu-lateral a.ativo .icone-menu,
.menu-lateral a:hover .icone-menu {
    opacity: 1;
}

.form-logout {
    padding: 12px 14px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.botao-logout {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(120deg, rgba(180, 35, 24, 0.28), rgba(224, 59, 47, 0.16));
    color: #ffd7d2;
    border: 1px solid rgba(255, 140, 130, 0.35);
    border-radius: var(--raio-pill);
    padding: 11px 14px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.botao-logout:hover {
    background: linear-gradient(120deg, rgba(180, 35, 24, 0.42), rgba(224, 59, 47, 0.28));
    color: #fff;
}

.icone-utilizador {
    display: inline-grid;
    place-items: center;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.icone-utilizador svg {
    width: 100%;
    height: 100%;
    display: block;
}

.icone-utilizador-cabecalho {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(31, 78, 121, 0.12);
    color: var(--cor-primaria);
    padding: 7px;
    box-sizing: border-box;
}

.nome-utilizador-cabecalho {
    font-weight: 600;
    color: var(--cor-texto);
}

.form-logout-cabecalho {
    margin: 0;
    margin-left: 4px;
}

.botao-logout-cabecalho {
    display: inline-grid;
    place-items: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid rgba(180, 35, 24, 0.25);
    border-radius: 50%;
    background: rgba(180, 35, 24, 0.08);
    color: var(--cor-perigo);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.botao-logout-cabecalho svg {
    width: 18px;
    height: 18px;
    display: block;
}

.botao-logout-cabecalho:hover {
    background: rgba(180, 35, 24, 0.16);
    border-color: rgba(180, 35, 24, 0.45);
    color: var(--cor-perigo-hover);
}

.area-principal {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.cabecalho-app {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 28px;
    background: var(--gradiente-cabecalho);
    border-bottom: 1px solid rgba(201, 215, 230, 0.95);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 8px 24px rgba(20, 53, 82, 0.05);
}

.cabecalho-app h1 {
    margin: 0;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
    background: var(--gradiente-marca);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.botao-menu {
    display: none;
    background: #fff;
    border: 1px solid var(--cor-borda);
    border-radius: 12px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 1.1rem;
}

.utilizador-cabecalho {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--cor-texto-suave);
    font-size: 0.92rem;
}

.conteudo-app {
    padding: 28px;
}

/* Página de teste (legado Fase 1) */
.pagina-teste {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(160deg, #eef2f6 0%, #f8fafc 45%, #e8eef5 100%);
}

.caixa-teste {
    width: 100%;
    max-width: 640px;
    background: var(--cor-superficie);
    border: 1px solid var(--cor-borda);
    border-radius: var(--raio);
    box-shadow: var(--sombra);
    padding: 32px;
}

.caixa-teste h1 {
    margin: 0 0 8px;
    font-size: 1.6rem;
    color: var(--cor-primaria);
}

.subtitulo,
.passos {
    color: var(--cor-texto-suave);
}

.detalhes-ligacao {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 8px 16px;
    margin: 0 0 24px;
}

.detalhes-ligacao dt {
    font-weight: 600;
    color: var(--cor-texto-suave);
}

.detalhes-ligacao dd {
    margin: 0;
}

.acoes {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 24px 0 0;
}

code {
    background: #edf2f7;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

@media (max-width: 900px) {
    .barra-lateral {
        position: fixed;
        left: 0;
        top: 0;
        z-index: 40;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
    }

    .barra-lateral.aberto {
        transform: translateX(0);
    }

    .botao-menu {
        display: inline-block;
    }

    .cabecalho-app {
        padding: 14px 16px;
    }

    .conteudo-app {
        padding: 16px;
    }
}