/* ============================================================
   DeverIA - visual de jogo para a mulecada 🎮
   Quer mudar as cores do app? Mexa aqui embaixo! 👇
   ============================================================ */
:root {
    --fundo: #150B2E;            /* roxo escuro do fundo */
    --fundo-card: #241546;       /* roxo dos cartões */
    --roxo: #8B5CF6;
    --rosa: #EC4899;
    --amarelo: #FDE047;
    --verde: #4ADE80;
    --ciano: #22D3EE;
    --texto: #F5F3FF;
    --texto-suave: #B8A8E0;
    --radius: 20px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
    font-family: 'Nunito', sans-serif;
    background: var(--fundo);
    background-image:
        radial-gradient(circle at 15% 10%, rgba(139, 92, 246, .25), transparent 40%),
        radial-gradient(circle at 85% 90%, rgba(236, 72, 153, .18), transparent 40%);
    color: var(--texto);
    min-height: 100vh;
    min-height: 100dvh;
}

h1, h2, h3, .btn, .logo { font-family: 'Baloo 2', cursive; }

/* container central: no celular ocupa tudo, no PC vira "celular" no meio */
.tela {
    max-width: 520px;
    margin: 0 auto;
    padding: 24px 20px 40px;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

/* ---------- Botões estilo jogo (com "profundidade" 3D) ---------- */
.btn {
    display: block;
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 1.15rem;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    color: #1a1033;
    background: var(--amarelo);
    box-shadow: 0 5px 0 #ca8a04;
    cursor: pointer;
    transition: transform .08s, box-shadow .08s;
}
.btn:active { transform: translateY(4px); box-shadow: 0 1px 0 #ca8a04; }

.btn-roxo { background: var(--roxo); color: #fff; box-shadow: 0 5px 0 #6d28d9; }
.btn-roxo:active { box-shadow: 0 1px 0 #6d28d9; }

.btn-borda {
    background: transparent;
    color: var(--texto);
    border: 3px solid var(--roxo);
    box-shadow: none;
}
.btn-borda:active { transform: scale(.98); }

/* ---------- Cartões ---------- */
.card {
    background: var(--fundo-card);
    border-radius: var(--radius);
    padding: 18px;
    border: 2px solid rgba(139, 92, 246, .3);
}

/* ---------- Tela inicial ---------- */
.hero { text-align: center; margin: auto 0; }
.hero img.duda-avatar {
    width: 150px; height: 150px;
    animation: flutuar 3s ease-in-out infinite;
}
@keyframes flutuar {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.logo {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(90deg, var(--amarelo), var(--rosa), var(--ciano));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 8px 0 4px;
}
.slogan { color: var(--texto-suave); font-size: 1.1rem; margin-bottom: 24px; }

.destaques { display: flex; flex-direction: column; gap: 12px; margin: 24px 0; text-align: left; }
.destaques .card { display: flex; gap: 14px; align-items: center; font-weight: 700; }
.destaques .emoji { font-size: 1.8rem; }

.botoes { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }

/* ---------- Formulários ---------- */
form.form { display: flex; flex-direction: column; gap: 14px; margin-top: 20px; }
.form input, .form select {
    width: 100%;
    padding: 15px 16px;
    border-radius: 14px;
    border: 2px solid rgba(139, 92, 246, .4);
    background: var(--fundo-card);
    color: var(--texto);
    font-size: 1rem;
    font-family: 'Nunito', sans-serif;
}
.form input:focus, .form select:focus { outline: none; border-color: var(--amarelo); }
.erro {
    background: rgba(236, 72, 153, .18);
    border: 2px solid var(--rosa);
    border-radius: 14px;
    padding: 12px;
    font-weight: 700;
    text-align: center;
}
.link-suave { color: var(--texto-suave); text-align: center; margin-top: 16px; }
.link-suave a { color: var(--amarelo); font-weight: 800; }

.topo-voltar { color: var(--texto-suave); text-decoration: none; font-weight: 800; font-size: 1rem; margin-bottom: 8px; display: inline-block; }

/* ---------- Barra de XP ---------- */
.xp-box { margin: 14px 0 4px; }
.xp-topo { display: flex; justify-content: space-between; font-weight: 800; font-size: .9rem; margin-bottom: 6px; }
.xp-nivel { color: var(--amarelo); }
.xp-pontos { color: var(--texto-suave); }
.xp-barra { height: 14px; background: rgba(255,255,255,.12); border-radius: 99px; overflow: hidden; }
.xp-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--amarelo), var(--rosa));
    border-radius: 99px;
    transition: width .6s ease;
}

/* ---------- Grade de matérias ---------- */
.saudacao { font-size: 1.6rem; margin-top: 10px; }
.saudacao span { color: var(--amarelo); }
.sub { color: var(--texto-suave); margin-bottom: 6px; }

.grade-materias {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 16px;
}
.materia-card {
    background: var(--fundo-card);
    border: 2px solid rgba(139, 92, 246, .3);
    border-radius: var(--radius);
    padding: 18px 10px;
    text-align: center;
    text-decoration: none;
    color: var(--texto);
    font-weight: 800;
    font-size: 1rem;
    transition: transform .1s, border-color .1s;
}
.materia-card:active { transform: scale(.95); border-color: var(--amarelo); }
.materia-card .emoji { font-size: 2.2rem; display: block; margin-bottom: 6px; }

.quentes { margin-top: 26px; }
.quentes h3 { margin-bottom: 10px; }
.tema-quente {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 14px; margin-bottom: 8px;
    background: rgba(253, 224, 71, .08);
    border: 2px solid rgba(253, 224, 71, .25);
    border-radius: 14px;
    font-weight: 700; font-size: .95rem;
}
.tema-quente .vezes { color: var(--amarelo); white-space: nowrap; margin-left: 10px; }

.rodape-sair { text-align: center; margin-top: 30px; }
.rodape-sair a { color: var(--texto-suave); }

/* ---------- Chat ---------- */
body.tela-chat .tela { padding: 0; }
.chat-wrap { display: flex; flex-direction: column; height: 100vh; height: 100dvh; }

.chat-header {
    display: flex; align-items: center; gap: 12px;
    padding: 14px 16px 10px;
    background: rgba(21, 11, 46, .95);
    backdrop-filter: blur(8px);
    border-bottom: 2px solid rgba(139, 92, 246, .3);
    position: sticky; top: 0; z-index: 10;
}
.chat-header img { width: 48px; height: 48px; }
.chat-header .quem { flex: 1; }
.chat-header .quem b { font-family: 'Baloo 2', cursive; font-size: 1.15rem; }
.chat-header .quem small { display: block; color: var(--texto-suave); }
.chat-header a { text-decoration: none; font-size: 1.4rem; color: var(--texto); }

.chat-msgs {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.msg { max-width: 85%; padding: 12px 16px; border-radius: 18px; line-height: 1.5; font-size: 1rem; }
.msg.duda {
    background: var(--fundo-card);
    border: 2px solid rgba(139, 92, 246, .35);
    border-bottom-left-radius: 6px;
    align-self: flex-start;
}
.msg.aluno {
    background: linear-gradient(135deg, var(--roxo), var(--rosa));
    border-bottom-right-radius: 6px;
    align-self: flex-end;
}
.msg .chip-tema {
    display: inline-block;
    margin-top: 10px;
    padding: 4px 10px;
    background: rgba(253, 224, 71, .15);
    border: 1.5px solid rgba(253, 224, 71, .4);
    border-radius: 99px;
    font-size: .8rem;
    font-weight: 800;
    color: var(--amarelo);
}
.msg a.btn-video {
    display: inline-block;
    margin-top: 8px;
    padding: 8px 14px;
    background: rgba(34, 211, 238, .15);
    border: 2px solid var(--ciano);
    border-radius: 99px;
    color: var(--ciano);
    font-weight: 800;
    font-size: .85rem;
    text-decoration: none;
}

.digitando { color: var(--texto-suave); font-style: italic; }

.chat-input {
    display: flex; gap: 10px;
    padding: 12px 14px calc(12px + env(safe-area-inset-bottom));
    background: rgba(21, 11, 46, .95);
    border-top: 2px solid rgba(139, 92, 246, .3);
    position: sticky; bottom: 0;
}
.chat-input textarea {
    flex: 1;
    resize: none;
    border: 2px solid rgba(139, 92, 246, .4);
    background: var(--fundo-card);
    color: var(--texto);
    border-radius: 16px;
    padding: 12px 14px;
    font-size: 1rem;
    font-family: 'Nunito', sans-serif;
    max-height: 110px;
}
.chat-input textarea:focus { outline: none; border-color: var(--amarelo); }
.chat-input button {
    width: 52px; height: 52px;
    border: none; border-radius: 50%;
    background: var(--amarelo);
    box-shadow: 0 4px 0 #ca8a04;
    font-size: 1.3rem;
    cursor: pointer;
    align-self: flex-end;
}
.chat-input button:active { transform: translateY(3px); box-shadow: 0 1px 0 #ca8a04; }
.chat-input button:disabled { opacity: .5; }

/* ---------- Créditos ---------- */
.creditos {
    margin-top: 28px;
    text-align: center;
    font-size: .85rem;
    color: var(--texto-suave);
}
.creditos a { color: var(--amarelo); font-weight: 800; text-decoration: none; }

/* ---------- Admin ---------- */
.tabela { width: 100%; border-collapse: collapse; font-size: .85rem; margin-top: 12px; }
.tabela th, .tabela td { padding: 8px 6px; border-bottom: 1px solid rgba(139,92,246,.25); text-align: left; }
.tabela th { color: var(--amarelo); }