/* ==========================================
   1. DESIGN SYSTEM (Tokens Unificados)
   ========================================== */
:root {
    --orange: #F97316;
    --orange-hover: #ea580c;
    --orange-glow: rgba(249, 115, 22, 0.2);
    --bg-main: #F4F5F7;
    --bg-card: #FFFFFF;

    --text-main: #111827;
    --text-muted: #6B7280;
    --border: #E5E7EB;

    --red-text: #DC2626;
    --red-bg: #FEE2E2;
    --green-bg: #D1FAE5;
    --green-text: #059669;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.05), 0 8px 10px -6px rgba(0,0,0,0.01);
    --transition-fast: 0.2s ease-in-out;
}

/* ==========================================
   2. RESET E BASE DE ACESSIBILIDADE
   ========================================== */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }

*:focus-visible { outline: 3px solid var(--orange-glow); border-radius: 4px; }
button, input { font-family: inherit; }

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

/* ==========================================
   3. CONTAINER DE LOGIN E ANIMAÇÃO INICIAL
   ========================================== */
.login-container {
    background: var(--bg-card);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    text-align: center;
    /* Animação suave de entrada */
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================
   4. CABEÇALHO / LOGO
   ========================================== */
.logo-area { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-bottom: 30px; }
.logo-icon {
    background: var(--orange);
    width: 64px; height: 64px;
    border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 16px var(--orange-glow);
}
.logo-title { font-weight: 800; font-size: 26px; color: var(--text-main); letter-spacing: -0.5px; }
.logo-subtitle { font-size: 14px; color: var(--text-muted); }

/* ==========================================
   5. FORMULÁRIO (Inputs Mapeados)
   ========================================== */
.form-group { text-align: left; margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--text-main); }

.form-control {
    width: 100%; padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 15px; outline: none;
    transition: var(--transition-fast);
    background: #F9FAFB;
}
.form-control:focus {
    border-color: var(--orange);
    background: white;
    box-shadow: 0 0 0 3px var(--orange-glow);
}

/* ==========================================
   6. BOTÃO DE AÇÃO PRINCIPAL
   ========================================== */
.btn-primary {
    width: 100%; background: var(--orange); color: white; border: none;
    padding: 14px; border-radius: var(--radius-md);
    font-size: 16px; font-weight: 700; cursor: pointer;
    transition: var(--transition-fast);
    display: flex; justify-content: center; align-items: center; gap: 8px;
    margin-top: 10px;
    box-shadow: 0 4px 10px var(--orange-glow);
}
.btn-primary:hover {
    background: var(--orange-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px var(--orange-glow);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 5px var(--orange-glow); }

/* ==========================================
   7. MENSAGENS DE ALERTA (Com UX Animation)
   ========================================== */
.alert {
    padding: 14px 16px; border-radius: var(--radius-md);
    font-size: 14px; font-weight: 600; margin-bottom: 20px;
    text-align: left; display: flex; gap: 10px; align-items: center;
    /* Efeito visual para prender a atenção quando aparece */
    animation: shakeFade 0.4s ease-out forwards;
}
.alert svg { flex-shrink: 0; }

.alert-error { background: var(--red-bg); color: var(--red-text); border: 1px solid #FECACA; }
.alert-success { background: var(--green-bg); color: var(--green-text); border: 1px solid #A7F3D0; }

@keyframes shakeFade {
    0% { opacity: 0; transform: translateX(-10px); }
    50% { transform: translateX(10px); }
    100% { opacity: 1; transform: translateX(0); }
}

/* ==========================================
   8. RESPONSIVIDADE (Mobile App Look)
   ========================================== */
@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
        border: none;
        box-shadow: none;
        background: transparent;
    }
    body { background-color: var(--bg-card); align-items: flex-start; padding-top: 5vh; }
}